Acquisition method (AMC)
1
FSC 5310 × NUT,PLAIN,HEXAGON
NUT,PLAIN,HEXAGON
5310-00-637-3631 FSC 5310
NSN 5310-00-637-3631 (also written 5310006373631; NIIN 00-637-3631) is a nut, plain, hexagon in Federal Supply Class 5310, Nuts and Washers. 8 manufacturer part numbers from 7 suppliers are on record. It was last purchased in Sep 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
G
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC G: the government has a complete data package and the rights to use it. The codes describe the item's status on record, not any one solicitation. What the codes mean
What it is — can you make it?
Dimensions, the FLIS specification requirements, and the manufacturer part numbers already qualified against this NSN.
Dimensioned drawing
Generated from the federal catalog's dimensional data for this NSN — reference only, not a manufacturing drawing.
Specifications
From the federal catalog (DLA FLIS / PUB LOG) — what your part has to meet. Cited specification documents can be looked up in ASSIST Quick Search ↗, DoD's public spec repository — copy the document number in.
| Requirement | Value |
|---|---|
| THREAD SERIES BZRR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH CMLP | 10 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.750 |
| BEARING SURFACE TYPE CRTM | CHAMFERED OR WASHER FACED |
| MATERIAL MATT | OVERALL STEEL |
| NUT HEIGHT ADEA | INCHES MINIMUM 0.617 AND INCHES MAXIMUM 0.665 |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 1.0880 AND INCHES MAXIMUM 1.1250 |
| TEMP RATING AZKQ | FAHRENHEIT NOMINAL 1000.0 |
| THREAD CLASS AAJD | 2B |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| NUT STYLE ACTA | — |
| NONDEFINITIVE SPEC/STD DATA ZZZT | GRADE 4 OR GRADE 7 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | NUT MIL SPEC ALL MATERIAL RESPONSES GRADE 4OR7 |
Manufacturer part numbers
Commercial part numbers cross-referenced to this NSN in the federal catalog — the parts that have been accepted as satisfying this stock number, and who makes them.
| Part number | CAGE | Manufacturer |
|---|---|---|
| 522C900312 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
| 59A26PC42 | 53553 | AMETEK INC SCHUTTE AND KOERTING DIV |
| E-172-050-590 NUT | 11440 | GE STEAM POWER INC DBA GE STEAM POWER, INC |
| H-3373 PIECE 08 | 16712 | SIEMENS ENERGY, INC. |
| MIL-DTL-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MIL-S-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MS16286-8 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| SKN06121 PIECE | 89256 | NAVAL SHIP ENGINEERING CENTER PHILADELPHIA DIV |
What it pays — so you can quote
The government's own price and demand record for this NSN — what past awards cleared at, so you know where to land your quote.
Latest unit price
$2.10
Purchases
2
Total spend
$4,381
Sep 22, 2026
Last purchased
4 · 4.0/yr
Purchase records
$8,763
Total demand
$2.10
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 22, 2026 | 855 | $2.10 | $1,796 | CAVANAUGH GOVERNMENT GROUP, LLC (5UY76) | Unknown | Source ↗ |
| Aug 26, 2026 | 1,306 | $1.98 | $2,586 | CAVANAUGH GOVERNMENT GROUP, LLC (5UY76) | Unknown | Source ↗ |
Related contract actions
Contract action totals, not unit prices — obligation amounts from USAspending for related awards, shown for context only. These do not appear on the price chart above.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Aug 26, 2026 | SPE4A626V335J ↗ | CAVANAUGH GOVERNMENT GROUP, LLC | — | $2,586 |
| Sep 22, 2026 | SPE4A626P0ZX5 ↗ | — | — | $1,796 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 3 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
Buying rhythm
How often does the government buy this item, and how long since the last time? Every solicitation and award on one line.
- Solicitation posted
- Award made
Dot size shows quantity. A faint bar joins a solicitation to the award made against it.
Time from solicitation to award
How long does a buy take from posting to award? One bar per past award that matches a solicitation.
- Open for quotes
- Closed, awaiting award
The typical buy took 10 days from posting to award.
Who wins this item
Does one supplier win this every time, and are the winners on the listed-source list? One dot per award.
- Award in the last 2 years
- Older award
CAVANAUGH GOVERNMENT GROUP, LLC
last award Sep 2026
AMETEK INC SCHUTTE AND KOERTING DIV
no award yet
no awards on record
Listed source GE STEAM POWER INC DBA GE STEAM POWER, INC
no award yet
no awards on record
Listed source MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
no award yet
no awards on record
Listed source MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
no award yet
no awards on record
Listed source NAVAL SHIP ENGINEERING CENTER PHILADELPHIA DIV
no award yet
no awards on record
Listed source SIEMENS ENERGY, INC.
no award yet
no awards on record
Listed source ZF INDUSTRIEANTRIEBE WITTEN GMBH
no award yet
no awards on record
Listed source CAVANAUGH GOVERNMENT GROUP, LLC won 2 of the last 2 awards. CAVANAUGH GOVERNMENT GROUP, LLC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-27-T-1816 | Oct 13, 2026 | Oct 20, 2026 | 506 | Cancelled | View at DIBBS → |
| SPE4A6-26-T-27LA | Sep 10, 2026 | Sep 17, 2026 | 855 | Expired | View at DIBBS → |
| SPE4A6-26-T-18RR | Aug 18, 2026 | Aug 25, 2026 | 1,306 | Expired | View at DIBBS → |
Open RFQs on DIBBS → DIBBS award history ↗
About this data
- Unit prices: DLA DIBBS award records — every row links to its government record.
- AMSC: latest observed value from DIBBS solicitation history as of Oct 10, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-28.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,PLAIN,HEXAGON." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-00-637-3631/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-00-637-3631/