Acquisition method (AMC)
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FSC 5331 × O-RING
O-RING
5331-99-730-4828 FSC 5331
NSN 5331-99-730-4828 (also written 5331997304828; NIIN 99-730-4828) is an o-ring in Federal Supply Class 5331, O-Rings. It was last purchased in Sep 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
No acquisition method code is on record for this item.
Suffix (AMSC)
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Competition
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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
$1.54
Purchases
1
Total spend
$528.22
Sep 22, 2026
Last purchased
2 · 2.0/yr
Purchase records
$1,056
Total demand
$1.54
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 22, 2026 | 343 | $1.54 | $528.22 | MARTIN-BAKER AIRCRAFT COMPANY LIMITED (U1604) | 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 |
|---|---|---|---|---|
| Sep 22, 2026 | N00383-23-G-A/SPE7L126F204Z ↗ | MARTIN-BAKER AIRCRAFT COMPANY LIMITED | — | $528.22 |
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
MARTIN-BAKER AIRCRAFT COMPANY LIMITED
last award Sep 2026
MARTIN-BAKER AIRCRAFT COMPANY LIMITED won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7L1-27-T-0764 | Oct 8, 2026 | Oct 22, 2026 | 313 | Expired | View at DIBBS → |
| SPE7L1-26-T-966Q | Aug 13, 2026 | Aug 24, 2026 | 343 | 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.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-05.
- Full methodology →
Cite this page
Citation
NSN Explorer. "O-RING." nsnexplorer.com, https://nsnexplorer.com/nsn/5331-99-730-4828/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5331-99-730-4828/