Acquisition method (AMC)
3
FSC 4320 × RING,WEARING
RING,WEARING
4320-01-443-1043 FSC 4320
NSN 4320-01-443-1043 (also written 4320014431043; NIIN 01-443-1043) is a ring, wearing in Federal Supply Class 4320, Power and Hand Pumps. 3 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.
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)
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 |
|---|---|
| BODY STYLE AAQL | — |
| OVERALL LENGTH ABHP | INCHES NOMINAL 1.130 |
| BODY OUTSIDE DIAMETER ADAR | INCHES NOMINAL 9.690 |
| BODY INSIDE DIAMETER ADAS | INCHES NOMINAL 8.662 |
| END TO FLANGE DISTANCE AJFM | INCHES NOMINAL 0.175 |
| CENTER FLANGE THICKNESS AYRJ | INCHES NOMINAL 0.480 |
| SMALLEST EXTERNAL ANCHOR FLANGE RADIUS AYRK | INCHES NOMINAL 4.750 |
| LARGEST EXTERNAL ANCHOR FLANGE RADIUS AYRL | INCHES NOMINAL 4.940 |
| DISTANCE BELOW CENTERLINE AYRM | INCHES NOMINAL 0.190 |
| CORNER SHAPE BZLX | ALL CORNERS SQUARE |
| SPECIAL FEATURES FEAT | MATERIAL IS "SIMSITE GRADE 302 (PHENOLIC LAMINATE) |
| MATERIAL MATT | PLASTIC |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | MIL STD SINGLE MATERIAL RESPONSE NAVSEA DWG 803-7226047 |
| PROPRIETARY CHARACTERISTICS PRPY | PACS |
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 |
|---|---|---|
| 0654C0710 | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS |
| 0654C0710S902A | 63857 | CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS |
| NA1074NICUAL | 83130 | AIR & LIQUID SYSTEMS CORPORATION DBA BUFFALO 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
—
—
Last purchased
—
Purchase records
—
Total demand
—
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.
No related contract actions on record.
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.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M1-26-T-380Z | Sep 25, 2026 | Oct 5, 2026 | 6 | 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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "RING,WEARING." nsnexplorer.com, https://nsnexplorer.com/nsn/4320-01-443-1043/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4320-01-443-1043/