Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,EXTENDED WASHER
NUT,SELF-LOCKING,EXTENDED WASHER
5310-00-549-9526 FSC 5310
NSN 5310-00-549-9526 (also written 5310005499526; NIIN 00-549-9526) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 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)
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 |
| MATERIAL MATT | OVERALL NICKEL ALLOY |
| WASHER OUTSIDE DIAMETER AAVX | INCHES MAXIMUM 0.495 |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.430 AND INCHES MAXIMUM 0.439 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| LOCKING FEATURE AAUM | PREVAILING TORQUE ALL METAL DESIGN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL MFR REF SINGLE TREATMENT RESPONSE 410,ELASTIC STO NUT COR |
| PRECIOUS MATERIAL PRMT | SILVER |
| OVERALL HEIGHT ABKW | INCHES MAXIMUM 0.473 |
| NUT STYLE ACTA | — |
| COUNTERSINK ANGLE CRSQ | NUT DEGREES NOMINAL 90.0 |
| THREAD QUANTITY PER INCH CMLP | 24 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5709 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.312 |
| SURFACE TREATMENT SFTT | OVERALL SILVER |
| WASHER THICKNESS ADEM | INCHES MINIMUM 0.063 |
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 |
|---|---|---|
| 4037829 | 77445 | RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY |
| 75206-524 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
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
—
Oct 20, 2026
Last purchased
3 · 3.0/yr
Purchase records
$14,209
Total demand
$7,960
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 |
|---|---|---|---|---|
| Aug 20, 2026 | SPE4A626V328N ↗ | — | — | $5,492 |
| Aug 20, 2026 | SPE4A626V326B ↗ | — | — | $756.20 |
| Oct 20, 2026 | SPE4A625V408N ↗ | — | — | $7,960 |
Demand history
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 6XGY8
last award Oct 2026
CAGE 13W08
last award Aug 2026
RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY
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 3 awards. CAGE 6XGY8 and 1 other won without being listed sources.
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 23, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-11-02.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,EXTENDED WASHER." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-00-549-9526/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-00-549-9526/