Acquisition method (AMC)
1
FSC 5340 × SEAT,HELICAL COMPRESSION SPRING
SEAT,HELICAL COMPRESSION SPRING
5340-00-339-2421 FSC 5340
NSN 5340-00-339-2421 (also written 5340003392421; NIIN 00-339-2421) is a seat, helical compression spring in Federal Supply Class 5340, Hardware, Commercial. 29 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Oct 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)
L
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC L: annual buy value is below the screening threshold. 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 |
|---|---|
| END DIAMETER BBRB | INCHES NOMINAL 1.0940 |
| OVERALL HEIGHT ABKW | INCHES NOMINAL 0.3440 |
| FIRST STEP DIAMETER ABPR | INCHES NOMINAL 1.5000 |
| DESIGN TYPE APGF | SOLID |
| MATERIAL MATT | COPPER ALLOY |
| COUNTERSINK ANGLE IN DEG AATA | 45.0 |
| COUNTERSINK DIAMETER AYRZ | INCHES NOMINAL 0.3750 |
| STYLE DESIGNATOR STYL | — |
| DISTANCE FROM END TO FIRST STEP BZDH | INCHES NOMINAL 0.1560 |
| BORE DIAMETER ABXV | INCHES NOMINAL 0.2500 |
| COUNTERBORE LENGTH BZDL | INCHES NOMINAL 0.0620 |
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 |
|---|---|---|
| 425166 | 07524 | DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER |
| AS15S4200-136PC7 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| AS15S4200-136PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| AS15S4200-138PC7 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| AS15S4200-138PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| BDE1S4501-36PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| BDE1S4501-38PC7 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| BDE1S4501-38PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| BDES4501-36PC7 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| DE256S4501-36PC7 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| DE256S4501-36PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| DE256S4501-38PC7 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| DE256S4501-38PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| DE256S5501-36PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| DE256S5501-38PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| DE99S4501-36PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| DE99S4501-38PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| DE99S5501-36PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| DE99S5501-38PC7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| E-2935 PIECE 7 | 07524 | DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER |
| E1792PC7 | 07524 | DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER |
| E1831PC7 | 07524 | DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER |
| E1833PC7 | 07524 | DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER |
| E1858PC7 | 07524 | DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER |
| E1863PC7 | 07524 | DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER |
| E1866PC7 | 07524 | DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER |
| E1868PC7 | 07524 | DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER |
| N425166 | 0MHC4 | NAVPAR INC |
| QZ50E6 | 07524 | DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER |
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
$41.70
Purchases
1
Total spend
$1,918
Oct 29, 2026
Last purchased
2 · 2.0/yr
Purchase records
$3,836
Total demand
$41.70
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 29, 2026 | 46 | $41.70 | $1,918 | NAVPAR INC (0MHC4) | 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 29, 2026 | SPE7L327V0641 ↗ | NAVPAR INC | — | $1,918 |
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
NAVPAR INC
last award Oct 2026
DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER
no award yet
no awards on record
Listed source NAVAL SEA SYSTEMS COMMAND
no award yet
no awards on record
Listed source NAVAL SHIP SYSTEMS COMMAND
no award yet
no awards on record
Listed source NAVPAR INC won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7L1-26-T-09K9 | Sep 11, 2026 | Sep 24, 2026 | 46 | 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: 2026-11-01.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SEAT,HELICAL COMPRESSION SPRING." nsnexplorer.com, https://nsnexplorer.com/nsn/5340-00-339-2421/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5340-00-339-2421/