Acquisition method (AMC)
3
FSC 5310 × WASHER,LOCK
WASHER,LOCK
5310-01-178-1946 FSC 5310
NSN 5310-01-178-1946 (also written 5310011781946; NIIN 01-178-1946) is a washer, lock in Federal Supply Class 5310, Nuts and Washers. 4 manufacturer part numbers from 2 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 | |
|---|---|---|---|
| SPE7L1-27-T-3440 | 97 | Closes in 5d | Bid → |
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
R
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. 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 0.509 AND INCHES MAXIMUM 0.521 |
| OUTSIDE DIAMETER ABKV | INCHES MINIMUM 0.859 AND INCHES MAXIMUM 0.871 |
| MATERIAL THICKNESS ABPX | INCHES MINIMUM 0.099 AND INCHES MAXIMUM 0.117 |
| HARDNESS RATING CQFM | ROCKWELL C MINIMUM 40.0 AND ROCKWELL C MAXIMUM 50.0 |
| MATERIAL MATT | OVERALL STEEL |
| STYLE DESIGNATOR STYL | — |
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 |
|---|---|---|
| 0N16412.12.32 | 82796 | COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE |
| 91100262 | 82796 | COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE |
| 91100262N | 7PZX0 | FAIRBANKS MORSE, LLC |
| 91100262N | 82796 | COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE |
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
$113.69
Purchases
1
Total spend
$6,367
Oct 21, 2026
Last purchased
2 · 2.0/yr
Purchase records
$12,733
Total demand
$113.69
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 21, 2026 | 56 | $113.69 | $6,367 | CHAND, L.L.C. (0D5X4) | Unknown | Source ↗ |
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 21, 2026 | SPE7L527P0033 ↗ | CHAND, L.L.C. | — | $6,367 |
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
CHAND, L.L.C.
last award Oct 2026
COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE
no award yet
no awards on record
Listed source FAIRBANKS MORSE, LLC
no award yet
no awards on record
Listed source CHAND, L.L.C. won the only award on record. CHAND, L.L.C. won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7L1-27-T-3440 | Nov 5, 2026 | Nov 12, 2026 | 97 | Open | View at DIBBS → |
| SPE7L5-26-T-4916 | Aug 10, 2026 | Sep 25, 2026 | 56 | 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: 2026-10-23.
- Full methodology →
Cite this page
Citation
NSN Explorer. "WASHER,LOCK." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-178-1946/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-178-1946/