Acquisition method (AMC)
2
FSC 5310 × NUT,SELF-LOCKING,HEXAGON
NUT,SELF-LOCKING,HEXAGON
5310-00-055-2105 FSC 5310
NSN 5310-00-055-2105 (also written 5310000552105; NIIN 00-055-2105) is a nut, self-locking, hexagon in Federal Supply Class 5310, Nuts and Washers. 4 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Nov 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 2).
Suffix (AMSC)
B
Competition
Coded for competition
AMC 2: suitable for competitive acquisition, first time. AMSC B: must be bought from the sources named on a source control or selected item drawing. 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 CLASS AAJD | 3B |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| LOCKING FEATURE AAUM | PREVAILING TORQUE ALL METAL DESIGN |
| NUT STYLE ACTA | — |
| NUT HEIGHT ADEA | INCHES NOMINAL 0.350 |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.367 AND INCHES MAXIMUM 0.376 |
| THREAD SERIES BZRR | UNF |
| THREAD QUANTITY PER INCH CMLP | 32 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.190 |
| BEARING SURFACE TYPE CRTM | CHAMFERED |
| MATERIAL MATT | OVERALL STEEL UNS S34720 OR STEEL UNS S34723 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD ALL MATERIAL RESPONSES A-S 5642 |
| PRECIOUS MATERIAL PRMT | SILVER |
| SURFACE TREATMENT SFTT | OVERALL SILVER |
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 |
|---|---|---|
| 990FR12-1032 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| R419P3 | 07482 | GENERAL ELECTRIC COMPANY |
| R419P3 | 52828 | REPUBLIC FASTENER MFG. CORP. DBA ARCONIC FASTENING SYSTEMS |
| R419P3C | 07482 | GENERAL ELECTRIC COMPANY |
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
—
Purchases
0
Total spend
—
Nov 5, 2026
Last purchased
2 · 2.0/yr
Purchase records
$359,373
Total demand
$9,373
Latest award total
Purchase history
No priced purchases on record for this NSN yet.
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 |
|---|---|---|---|---|
| Oct 30, 2026 | SPE4A627D60GU ↗ | — | — | $350,000 |
| Nov 5, 2026 | SPE4A627D60GU/SPE4A627F2661 ↗ | — | — | $9,373 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 1 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
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
CAGE 13W08
last award Nov 2026
GENERAL ELECTRIC COMPANY
no award yet
no awards on record
Listed source REPUBLIC FASTENER MFG. CORP. DBA ARCONIC FASTENING SYSTEMS
no award yet
no awards on record
Listed source SPS TECHNOLOGIES, LLC DBA PB FASTENERS
no award yet
no awards on record
Listed source CAGE 13W08 won 2 of the last 2 awards. CAGE 13W08 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-27-T-1594 | Oct 13, 2026 | Oct 23, 2026 | 455 | 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 13, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-11-06.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,HEXAGON." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-00-055-2105/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-00-055-2105/