Acquisition method (AMC)
3
FSC 4320 × RING,WEARING
RING,WEARING
4320-00-148-1388 FSC 4320
NSN 4320-00-148-1388 (also written 4320001481388; NIIN 00-148-1388) is a ring, wearing in Federal Supply Class 4320, Power and Hand Pumps. 9 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 | |
|---|---|---|---|
| SPE7M1-27-T-0513 | 2 | Closes in 4d | Bid → |
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
C
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC C: needs engineering source approval; other sources must qualify first. 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 |
|---|---|
| MATERIAL MATT | COPPER ALLOY |
| BODY OUTSIDE DIAMETER ADAR | INCHES NOMINAL 26.301 |
| OVERALL LENGTH ABHP | INCHES NOMINAL 6.718 |
| SPECIAL FEATURES FEAT | CASTED |
| BODY INSIDE DIAMETER ADAS | INCHES NOMINAL 25.000 |
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 |
|---|---|---|
| 993R0048 PC. NO. 2.3 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS |
| BS5-1415PC709 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS |
| BS5-1417PC709 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS |
| M6 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS |
| M9 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS |
| R-651, PC2.3 | 63852 | QUANTUM CORP |
| R324PC2-3 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS |
| R651,PC2.3 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS |
| R84-13 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS |
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
—
Oct 6, 2026
Last purchased
1 · 1.0/yr
Purchase records
$99,762
Total demand
$99,762
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 |
|---|---|---|---|---|
| Oct 6, 2026 | SPE7M124P2286 ↗ | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS | — | $99,762 |
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
CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS
last award Oct 2026
QUANTUM CORP
no award yet
no awards on record
Listed source CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M1-27-T-0513 | Oct 13, 2026 | Oct 23, 2026 | 2 | Open | View at DIBBS → |
| SPE7M1-26-T-371U | Sep 25, 2026 | Oct 5, 2026 | 1 | 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: 2026-10-08.
- Full methodology →
Cite this page
Citation
NSN Explorer. "RING,WEARING." nsnexplorer.com, https://nsnexplorer.com/nsn/4320-00-148-1388/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4320-00-148-1388/