Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,SPLINE
NUT,SELF-LOCKING,SPLINE
5310-00-998-0533 FSC 5310
NSN 5310-00-998-0533 (also written 5310009980533; NIIN 00-998-0533) is a nut, self-locking, spline in Federal Supply Class 5310, Nuts and Washers. 9 manufacturer part numbers from 6 suppliers are on record. The government has 1 open solicitation for it.
Open for bid
1 open solicitation on record right now — quantity, close date, and where to submit.
| Solicitation | Qty | Status | |
|---|---|---|---|
| SPE4A6-27-T-8895 | 2,290 | Closes in 6d | Bid → |
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
B
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later 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.
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 WITH NONMETALLIC INSERT |
| THREAD SERIES BZRR | UNF |
| THREAD QUANTITY PER INCH CMLP | 24 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL EXCEPT INSERT ASSN STD SINGLE MATERIAL RESPONSE A-S 5022 |
| SURFACE TREATMENT SFTT | NUT CADMIUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | NUT FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY 1,CL 3 QQ--416 |
| NUT DIAMETER ACTD | INCHES NOMINAL 0.625 |
| NUT HEIGHT ADEA | INCHES NOMINAL 0.422 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.312 |
| MATERIAL MATT | LOCKING INSERT PLASTIC POLYHEXAMETHYLENE AMIDE OR PLASTIC POLYCAPROLACTAM |
| MATERIAL MATT | OVERALL EXCEPT INSERT STEEL COMP 1117 |
| TEMP RATING AZKQ | FAHRENHEIT NOMINAL 250.0 |
| NUT STYLE ACTA | — |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | LOCKING INSERT MIL SPEC ALL MATERIAL RESPONSES -IL---20693 |
| PILOT DIAMETER AAVL | INCHES MINIMUM 0.446 AND INCHES MAXIMUM 0.450 |
| PILOT LENGTH AAVM | INCHES NOMINAL 0.188 |
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 |
|---|---|---|
| 22FY3-524 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| 22FY3-524 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA |
| 42ND-12-524 | 27687 | GREER STOP NUT, INC. |
| 42ND12-0524 | 27687 | GREER STOP NUT, INC. |
| 42ND12-054 | 72962 | HARVARD INDUSTRIES INC |
| 50160 | 27687 | GREER STOP NUT, INC. |
| 50160 | 72429 | MISSION SYSTEMS DAVENPORT INC. |
| 5310PL1695053 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| 5310PL1695059 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
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
$1.45
Purchases
1
Total spend
$3,564
Oct 14, 2026
Last purchased
2 · 2.0/yr
Purchase records
$7,128
Total demand
$1.45
Latest unit price
Purchase history
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 14, 2026 | SPE4A627P1577 ↗ | — | — | $3,564 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 2 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.
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 86BR3
last award Oct 2026
GREER STOP NUT, INC.
no award yet
no awards on record
Listed source HARVARD INDUSTRIES INC
no award yet
no awards on record
Listed source JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX
no award yet
no awards on record
Listed source MISSION SYSTEMS DAVENPORT INC.
no award yet
no awards on record
Listed source SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA
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 86BR3 won the only award on record. CAGE 86BR3 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-27-T-8895 | Nov 6, 2026 | Nov 13, 2026 | 2,290 | Open | View at DIBBS → |
| SPE4A6-26-T-15NY | Aug 12, 2026 | Aug 19, 2026 | 2,458 | 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: 2026-10-15.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,SPLINE." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-00-998-0533/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-00-998-0533/