Acquisition method (AMC)
1
FSC 5310 × WASHER,LOCK
WASHER,LOCK
5310-01-665-8546 FSC 5310
NSN 5310-01-665-8546 (also written 5310016658546; NIIN 01-665-8546) is a washer, lock in Federal Supply Class 5310, Nuts and Washers. 1 manufacturer part number from 1 supplier is 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.
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 |
|---|---|
| HOLE DIAMETER AAUB | INCHES MINIMUM 1.144 AND INCHES MAXIMUM 1.172 |
| OUTSIDE DIAMETER ABKV | INCHES NOMINAL 1.853 |
| MATERIAL THICKNESS ABPX | INCHES NOMINAL 0.301 |
| HARDNESS RATING CQFM | ROCKWELL C MINIMUM 45.0 AND ROCKWELL C MAXIMUM 53.0 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | WASHER, LOCK-HELICAL SPRING, REGULAR (MEDIUM) SERIES |
| MATERIAL MATT | OVERALL STEEL COMP 1060 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD SINGLE MATERIAL RESPONSE AST- A510 |
| SURFACE TREATMENT SFTT | OVERALL ZINC AND CHROMATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL ASSN STD SINGLE TREATMENT RESPONSE AST- B633 |
| STYLE DESIGNATOR STYL | — |
| NONDEFINITIVE SPEC/STD DATA ZZZT | CLASS A AND STYLE 2 |
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 |
|---|---|---|
| MS51415-14 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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
$1.75
Purchases
1
Total spend
$2,917
Sep 23, 2026
Last purchased
2 · 2.0/yr
Purchase records
$5,835
Total demand
$1.75
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 23, 2026 | SPE4A626V391L ↗ | — | — | $2,917 |
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 156P5
last award Sep 2026
MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
no award yet
no awards on record
Listed source CAGE 156P5 won the only award on record. CAGE 156P5 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-31JY | Sep 17, 2026 | Sep 24, 2026 | 1,667 | 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: 2026-10-05.
- Full methodology →
Cite this page
Citation
NSN Explorer. "WASHER,LOCK." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-665-8546/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-665-8546/