Acquisition method (AMC)
1
FSC 5310 × WASHER,SHOULDERED
WASHER,SHOULDERED
5310-00-550-4357 FSC 5310
NSN 5310-00-550-4357 (also written 5310005504357; NIIN 00-550-4357) is a washer, shouldered in Federal Supply Class 5310, Nuts and Washers. 3 manufacturer part numbers from 3 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)
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.
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 |
|---|---|
| SHOULDER HEIGHT ABMG | INCHES MINIMUM 0.009 AND INCHES MAXIMUM 0.017 |
| MATERIAL THICKNESS ABPX | INCHES MINIMUM 0.036 AND INCHES MAXIMUM 0.040 |
| STYLE DESIGNATOR STYL | — |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL FED SPEC SINGLE MATERIAL RESPONSE QQ-S-763 OR MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-5059 QQ-S-763 |
| HOLE DIAMETER AAUB | INCHES MINIMUM 0.256 AND INCHES MAXIMUM 0.258 |
| SHOULDER DIAMETER AAVH | INCHES MINIMUM 0.365 AND INCHES MAXIMUM 0.385 |
| MATERIAL MATT | OVERALL STEEL COMP 302 |
| OUTSIDE DIAMETER ABKV | INCHES MINIMUM 0.665 AND INCHES MAXIMUM 0.670 |
| SURFACE FINISH CSYM | ALL SURFACES MICROINCHES 63.0 |
| SURFACE TREATMENT SFTT | OVERALL PASSIVATE |
| SPECIAL FEATURES FEAT | EDGES ON OUTER DIA ROUNDED PER RADIUS MUST BE TANGENT AND SMOOTH TO EACH SIDE OF 0.036 TO 0.040 |
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 |
|---|---|---|
| 6812646 | 24617 | GENERAL MOTORS CORP |
| 6812646 | 63005 | ROLLS-ROYCE CORPORATION |
| 6812646 | 73342 | ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC |
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
$78.8462
Purchases
2
Total spend
$11,865
Oct 7, 2026
Last purchased
4 · 4.0/yr
Purchase records
$23,730
Total demand
$78.8462
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 |
|---|---|---|---|---|
| Sep 24, 2026 | SPE4A626P000P ↗ | — | — | $7,765 |
| Oct 7, 2026 | SPE4A627P1400 ↗ | — | — | $4,100 |
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.
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 15 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
CAGE 7G7M2
last award Oct 2026
ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC
no award yet
no awards on record
Listed source GENERAL MOTORS CORP
no award yet
no awards on record
Listed source ROLLS-ROYCE CORPORATION
no award yet
no awards on record
Listed source CAGE 7G7M2 won 2 of the last 2 awards. CAGE 7G7M2 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-30MN | Sep 16, 2026 | Sep 23, 2026 | 52 | Expired | View at DIBBS → |
| SPE4A6-26-T-30MP | Sep 16, 2026 | Sep 23, 2026 | 179 | 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: 2026-10-08.
- Full methodology →
Cite this page
Citation
NSN Explorer. "WASHER,SHOULDERED." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-00-550-4357/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5310-00-550-4357/