Acquisition method (AMC)
3
FSC 4320 × RING,WEARING
RING,WEARING
4320-00-121-0447 FSC 4320
NSN 4320-00-121-0447 (also written 4320001210447; NIIN 00-121-0447) is a ring, wearing in Federal Supply Class 4320, Power and Hand Pumps. 3 manufacturer part numbers from 3 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-0171 | 2 | Closes today | Bid → |
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
H
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC H: the government lacks sufficient, accurate or legible data to buy from other sources. 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 OUTSIDE DIAMETER ADAR | INCHES NOMINAL 6.748 |
| BODY INSIDE DIAMETER ADAS | INCHES NOMINAL 6.187 |
| LEFT SIDE FLANGE THICKNESS ADXL | INCHES NOMINAL 0.187 |
| SPECIAL FEATURES FEAT | ONE HOLE 0.156 IN. DIA 0.125 IN. DEEP LOCATED ON OUTER EDGE OF BODY |
| FLANGE DIAMETER ABKK | INCHES NOMINAL 7.125 |
| BODY STYLE AAQL | — |
| OVERALL LENGTH ABHP | INCHES NOMINAL 0.687 |
| CORNER SHAPE BZLX | ALL CORNERS SQUARE |
| MATERIAL MATT | COPPER ALLOY |
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 |
|---|---|---|
| 55-22060 | 52081 | EURAMCO SAFETY INC |
| 55-22060 | 54402 | RPS-FL, INC. DBA RPS INC |
| D6C16S | 10613 | PENTAIR PUMP GROUP, INC. DBA FAIRBANKS MORSE PUMP |
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
$840.60
Purchases
1
Total spend
$1,681
Oct 13, 2026
Last purchased
2 · 2.0/yr
Purchase records
$3,362
Total demand
$840.60
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 13, 2026 | 2 | $840.60 | $1,681 | RPS-FL, INC. DBA RPS INC (54402) | 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 |
|---|---|---|---|---|
| Oct 13, 2026 | SPE7M127V0379 ↗ | RPS-FL, INC. DBA RPS INC | — | $1,681 |
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
RPS-FL, INC. DBA RPS INC
last award Oct 2026
EURAMCO SAFETY INC
no award yet
no awards on record
Listed source PENTAIR PUMP GROUP, INC. DBA FAIRBANKS MORSE PUMP
no award yet
no awards on record
Listed source RPS-FL, INC. DBA RPS INC won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M1-27-T-0171 | Oct 7, 2026 | Oct 19, 2026 | 2 | Open | 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: 2026-10-14.
- Full methodology →
Cite this page
Citation
NSN Explorer. "RING,WEARING." nsnexplorer.com, https://nsnexplorer.com/nsn/4320-00-121-0447/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4320-00-121-0447/