Acquisition method (AMC)
3
FSC 5310 × WASHER,FLAT
WASHER,FLAT
5310-01-423-7140 FSC 5310
NSN 5310-01-423-7140 (also written 5310014237140; NIIN 01-423-7140) is a washer, flat 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 | |
|---|---|---|---|
| SPE4A6-27-T-8961 | 2 | Closes in 6d | 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 |
|---|---|
| CROSS-SECTIONAL SHAPE STYLE AAGR | — |
| HOLE DIAMETER AAUB | INCHES NOMINAL 0.312 |
| PERIPHERAL SHAPE STYLE ABMW | — |
| CENTER HOLE SHAPE STYLE ABMX | — |
| THICKNESS ABNM | INCHES NOMINAL 0.120 |
| OVERALL DIAMETER ADAV | INCHES NOMINAL 1.262 |
| MATERIAL MATT | OVERALL RUBBER SILICONE CLASS Q |
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 |
|---|---|---|
| BMC-3479A PART 13 | 23798 | BIDORO MFG CO PO BOX 103 HUNTINGTON STA NY 11746 |
| BMC-3479C PART 13 | 23798 | BIDORO MFG CO PO BOX 103 HUNTINGTON STA NY 11746 |
| BMC-3479CCN PART 13 | 23798 | BIDORO MFG CO PO BOX 103 HUNTINGTON STA NY 11746 |
| BMC-3479CCN PART 13 | 6W889 | AMMCON CORP. |
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
$1,174.94
Purchases
2
Total spend
$10,574
Sep 16, 2026
Last purchased
4 · 4.0/yr
Purchase records
$21,149
Total demand
$1,174.94
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 16, 2026 | 2 | $1,174.94 | $2,350 | PIONEER INDUSTRIES, LLC (66200) | Unknown | Source ↗ |
| Aug 11, 2026 | 7 | $1,174.94 | $8,225 | PIONEER INDUSTRIES, LLC (66200) | 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 |
|---|---|---|---|---|
| Aug 11, 2026 | SPE4A626V299T ↗ | PIONEER INDUSTRIES, LLC | — | $8,225 |
| Sep 16, 2026 | SPE4A626V372C ↗ | PIONEER INDUSTRIES, LLC | — | $2,350 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 4 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.
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 6 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
PIONEER INDUSTRIES, LLC
last award Sep 2026
AMMCON CORP.
no award yet
no awards on record
Listed source BIDORO MFG CO PO BOX 103 HUNTINGTON STA NY 11746
no award yet
no awards on record
Listed source PIONEER INDUSTRIES, LLC won 2 of the last 2 awards. PIONEER INDUSTRIES, LLC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-27-T-8961 | Nov 6, 2026 | Nov 13, 2026 | 2 | Open | View at DIBBS → |
| SPE4A6-26-U-4170 | Sep 11, 2026 | Sep 25, 2026 | 34 | Expired | View at DIBBS → |
| SPE4A6-26-T-27RV | Sep 10, 2026 | Sep 17, 2026 | 2 | Expired | View at DIBBS → |
| SPE4A6-26-T-11YS | Aug 5, 2026 | Aug 12, 2026 | 7 | 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: 2026-11-04.
- Full methodology →
Cite this page
Citation
NSN Explorer. "WASHER,FLAT." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-423-7140/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-423-7140/