Acquisition method (AMC)
3
FSC 4310 × GUARD,COUPLING
GUARD,COUPLING
4310-01-134-9331 FSC 4310
NSN 4310-01-134-9331 (also written 4310011349331; NIIN 01-134-9331) is a guard, coupling in Federal Supply Class 4310, Compressors and Vacuum Pumps. 3 manufacturer part numbers from 3 suppliers are 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 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.
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 |
|---|---|---|
| 839-147-011 | 0DFD9 | SIEMENS GOVERNMENT TECHNOLOGIES, INC. DBA SGT DRESSER-RAND |
| 839-147-011 | 51729 | DRESSER, INC. DBA DRESSER ROOTS BLOWERS & COMPRESSORS DIV DRESSER ROOTS |
| 839-147-011 | 830R7 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DIV FLEET SOLUTIONS |
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
—
Purchases
0
Total spend
—
Sep 1, 2026
Last purchased
1 · 1.0/yr
Purchase records
$2,832
Total demand
$2,832
Latest award total
Purchase history
No priced purchases on record for this NSN yet.
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 1, 2026 | SPE7M126PA024 ↗ | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DIV FLEET SOLUTIONS | — | $2,832 |
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
CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DIV FLEET SOLUTIONS
last award Sep 2026
DRESSER, INC. DBA DRESSER ROOTS BLOWERS & COMPRESSORS DIV DRESSER ROOTS
no award yet
no awards on record
Listed source SIEMENS GOVERNMENT TECHNOLOGIES, INC. DBA SGT DRESSER-RAND
no award yet
no awards on record
Listed source CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DIV FLEET SOLUTIONS won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M1-26-Q-1538 | Sep 29, 2026 | Oct 6, 2026 | 4 | 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: 2026-10-26.
- Full methodology →
Cite this page
Citation
NSN Explorer. "GUARD,COUPLING." nsnexplorer.com, https://nsnexplorer.com/nsn/4310-01-134-9331/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4310-01-134-9331/