Acquisition method (AMC)
1
FSC 3655 × SEAT,LIQUID OXYGEN COUPLING
SEAT,LIQUID OXYGEN COUPLING
3655-00-063-3214 FSC 3655
NSN 3655-00-063-3214 (also written 3655000633214; NIIN 00-063-3214) is a seat, liquid oxygen coupling in Federal Supply Class 3655, Gas Generating and Dispensing Systems, Fixed or Mobile. 6 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Aug 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)
G
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC G: the government has a complete data package and the rights to use it. 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 |
|---|---|
| GENERAL CHARACTERISTICS ITEM DESCRIPTION TEXT | CAST ALUMINUM; 1.000 IN. SIZE |
| END ITEM IDENTIFICATION AGAV | O2-N2 GENERATING,STORAGE AND TRANSFER EQUIPMENT |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS ZZZY | CLEANED AND PACKAGED PER MIL-P-52211/CE/ MIL-P-52211/CE |
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 |
|---|---|---|
| 121A3-1-4 | 96101 | GAS EQUIPMENT ENGINEERING CORPORATION, THE DBA GEECO |
| 2900435-1 | 11243 | COSMODYNE, LLC DBA NIKKISO COSMODYNE DIV PROCESS SYSTEMS |
| 550043-10-206 | 00255 | FUTURECRAFT CORP SUB OF SOUTH BEND CONTROLS INC |
| 8987855 | 18876 | US ARMY AVIATION AND MISSILE COMMAND |
| 9-771-83-0001 | 00742 | AIR PRODUCTS AND CHEMICALS, INC DBA AIR PRODUCTS AND CHEMICALS INC |
| C8987855 | 00742 | AIR PRODUCTS AND CHEMICALS, INC DBA AIR PRODUCTS AND CHEMICALS 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
$65.00
Purchases
1
Total spend
$3,250
Aug 26, 2026
Last purchased
2 · 2.0/yr
Purchase records
$6,500
Total demand
$65.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Aug 26, 2026 | 50 | $65.00 | $3,250 | KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP (30828) | 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 |
|---|---|---|---|---|
| Aug 26, 2026 | SPE4A726PF846 ↗ | KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP | — | $3,250 |
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
KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP
last award Aug 2026
AIR PRODUCTS AND CHEMICALS, INC DBA AIR PRODUCTS AND CHEMICALS INC
no award yet
no awards on record
Listed source COSMODYNE, LLC DBA NIKKISO COSMODYNE DIV PROCESS SYSTEMS
no award yet
no awards on record
Listed source FUTURECRAFT CORP SUB OF SOUTH BEND CONTROLS INC
no award yet
no awards on record
Listed source GAS EQUIPMENT ENGINEERING CORPORATION, THE DBA GEECO
no award yet
no awards on record
Listed source US ARMY AVIATION AND MISSILE COMMAND
no award yet
no awards on record
Listed source KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP won the only award on record. KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A7-26-T-619T | Aug 6, 2026 | Aug 18, 2026 | 50 | 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: 2026-10-28.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SEAT,LIQUID OXYGEN COUPLING." nsnexplorer.com, https://nsnexplorer.com/nsn/3655-00-063-3214/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/3655-00-063-3214/