Acquisition method (AMC)
1
FSC 4520 × PIPE,AIR CONDITIONING-HEATING
PIPE,AIR CONDITIONING-HEATING
4520-00-277-8339 FSC 4520
NSN 4520-00-277-8339 (also written 4520002778339; NIIN 00-277-8339) is a pipe, air conditioning-heating in Federal Supply Class 4520, Space and Water Heating Equipment. 8 manufacturer part numbers from 7 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 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 |
|---|---|
| CROSS-SECTIONAL DIAMETER AZGK | INCHES NOMINAL 4.000 |
| NONDEFINITIVE SPEC/STD DATA ZZZT | CLASS 1 AND SIZE 4 AND STYLE 4 |
| CONSTRUCTION CQCF | SINGLE |
| MATERIAL THICKNESS AAJX | INCHES 0.0149 |
| MATERIAL MATT | STEEL |
| SHAPE SHPE | ROUND |
| LENGTH ABRY | INCHES NOMINAL 24.000 |
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 |
|---|---|---|
| 235E20 | 13305 | CAM FABRICATED SYSTEMS INC |
| 235E42-20 | 13305 | CAM FABRICATED SYSTEMS INC |
| 57026-1 | 31577 | JAEGER MACHINE CO |
| 57026-1 | 86734 | CYCLOPS INDUSTRIES INC EMPIRE-DETROIT STEEL DIV |
| A-A=55536-004 | 58536 | FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
| MILP551 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MILP551 | 97537 | JUNIPER ELBOW CO. INC. DBA JUNIPER ELBOW CO INC |
| SHT.MTL.4IN.DIA | 09098 | UNITED MCGILL CORP |
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 | |
|---|---|---|---|---|---|
| SPE8E8-27-T-0252 | Oct 19, 2026 | Nov 3, 2026 | 951 | 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 Nov 1, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "PIPE,AIR CONDITIONING-HEATING." nsnexplorer.com, https://nsnexplorer.com/nsn/4520-00-277-8339/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4520-00-277-8339/