Acquisition method (AMC)
1
FSC 5640 × INSULATION PIPE FITTING COVERING
INSULATION PIPE FITTING COVERING
5640-01-146-1898 FSC 5640
NSN 5640-01-146-1898 (also written 5640011461898; NIIN 01-146-1898) is an insulation pipe fitting covering in Federal Supply Class 5640, Wallboard, Building Paper, and Thermal Insulation Materials. 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 | |
|---|---|---|---|
| SPE8E6-27-T-0463 | 6 | Closes in 2d | Bid → |
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 |
|---|---|
| LAYER QUANTITY AARM | 3 |
| FABRICATION METHOD AARN | COMPRESSED |
| FLAMMABILITY RATING AARQ | NOT RATED |
| INSULATION THICKNESS AARU | INCHES MINIMUM 0.320 AND INCHES MAXIMUM 0.440 |
| END CONNECTION FITTING DESIGN ACCOMMODATED AARY | WELDED FITTING |
| SPECIAL FEATURES FEAT | LENGTH 14.800 IN. MIN AND 14.920 IN. MAX; INSIDE DIAMETER 6.500 IN. MIN AND 6.560 IN. MAX |
| MATERIAL MATT | LOCATION NOT OTHERWISE SPECIFIED SILICA FIBER |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | LOCATION NOT OTHERWISE SPECIFIED ASSN STD SINGLE MATERIAL RESPONSE A-S 3680 |
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 |
|---|---|---|
| 12275889 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
| 12275889 | 54787 | THERMAL STRUCTURES, INC |
| 5640011461898 | A00AM | E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES |
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
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Purchases
0
Total spend
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—
Last purchased
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Purchase records
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Total demand
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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 | |
|---|---|---|---|---|---|
| SPE8E6-27-T-0463 | Oct 29, 2026 | Nov 9, 2026 | 6 | 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 Nov 1, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "INSULATION PIPE FITTING COVERING." nsnexplorer.com, https://nsnexplorer.com/nsn/5640-01-146-1898/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5640-01-146-1898/