Acquisition method (AMC)
1
FSC 5325 × RING,RETAINING
RING,RETAINING
5325-01-178-0100 FSC 5325
NSN 5325-01-178-0100 (also written 5325011780100; NIIN 01-178-0100) is a ring, retaining in Federal Supply Class 5325, Fastening Devices. 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 as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
C
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, 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 |
|---|---|
| CROSS-SECTIONAL SHAPE STYLE AAGR | — |
| INSIDE DIAMETER AARX | INCHES NOMINAL 1.282 |
| CASEHARDENING INDICATOR AASG | NOT CASE-HARDENED |
| OUTSIDE DIAMETER ABKV | INCHES MINIMUM 1.472 AND INCHES MAXIMUM 1.487 |
| MAJOR THICKNESS ABMC | INCHES MINIMUM 0.041 AND INCHES MAXIMUM 0.045 |
| RING STYLE ACXD | — |
| USAGE DESIGN ALBY | INTERNAL |
| STRENGTH RATING AWQD | POUNDS PER SQUARE INCH (PSI) MINIMUM TENSILE 211000.0 |
| MATERIAL MATT | STEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | FED STD 1ST MATERIAL RESPONSE FED STD 66, CO- 1070 AND FED STD 2ND MATERIAL RESPONSE FED STD 66, CO- 1072 AND FED STD 3RD MATERIAL RESPONSE FED STD 66, CO- 1074 AND FED STD 4TH MATERIAL RESPONSE FED STD 66, CO- 1075 AND FED STD 5TH MATERIAL RESPONSE FED STD 66, CO- 1078 AND FED STD 6TH MATERIAL RESPONSE FED STD 66, CO- 1080 AND FED STD 7TH MATERIAL RESPONSE FED STD 66, CO- 1084 AND FED STD 8TH MATERIAL RESPONSE FED STD 66, CO- 1085 AND FED STD 9TH MATERIAL RESPONSE FED STD 66, CO- 1086 AND FED STD 10TH MATERIAL RESPONSE FED STD 66, CO- 1090 |
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 |
|---|---|---|
| HS3014RR140 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC |
| HS3014RR140 | 8V613 | THE BOEING COMPANY |
| RR-140 | 80756 | SPIROLOX INC |
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
$10.00
Purchases
1
Total spend
$50.00
Sep 10, 2026
Last purchased
2 · 2.0/yr
Purchase records
$100.00
Total demand
$10.00
Latest unit price
Purchase history
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 10, 2026 | SPE4A626V366G ↗ | — | — | $50.00 |
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
CAGE 1HUU4
last award Sep 2026
MCDONNELL DOUGLAS HELICOPTER CO INC
no award yet
no awards on record
Listed source SPIROLOX INC
no award yet
no awards on record
Listed source THE BOEING COMPANY
no award yet
no awards on record
Listed source CAGE 1HUU4 won the only award on record. CAGE 1HUU4 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-26JG | Sep 4, 2026 | Sep 11, 2026 | 5 | 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: 2026-10-23.
- Full methodology →
Cite this page
Citation
NSN Explorer. "RING,RETAINING." nsnexplorer.com, https://nsnexplorer.com/nsn/5325-01-178-0100/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5325-01-178-0100/