NSN catalog · 90,963 partsCatalog › Construction and Building Materials › FSC 5640 › 5640-00-267-1591
Thermal Insulation Block P/N MIL-PRF-2819 CL3
In stock — 42 on our U.S. shelfNSN 5640-00-267-1591 5640002671591 NIIN 002671591
SECO Parts has 42 in stock of NSN 5640-00-267-1591 — Thermal Insulation Block — on our own shelf in Augusta, GA: a stocking supplier, not a broker.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- Certificate of Conformance on request
- PO, GPC & major cards
- $50 minimum order — smaller requests still get a quote
- 30-day returns · terms
- FLIS item name
- INSULATION BLOCK,THERMAL
- SECO description
- INSULATION
- Federal supply class
- FSC 5640 — Wallboard, Building Paper, and Thermal Insulation Materials
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 42 |
| Total | 42 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5640-00-267-1591 002671591 MIL-PRF-2819 CL3 MIL-I-2819 MIL-I-2819 CL3
Get a quote
Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Overall width
- 12.000 in (nominal)
- Overall length
- 36.000 in (nominal)
- Overall thickness
- 2.500 in (nominal)
- Special features
- Scored Across the Center of the Width to Allow for Separation Into Two Equal Parts
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
MIL-PRF-2819 CL3 MIL-I-2819 MIL-I-2819 CL3
Shown for identification only. SECO can quote against any of these numbers.
Logistics data
| Source of supply | GSA General Services Administration |
| Acquisition advice code | J Not stocked, centrally procured — the government does not stock this item; it is procured only when a requisition arrives. SECO has 42 on the shelf |
| Unit of issue | BX box |
| Demilitarization code | A Demilitarization not required — non-munitions-list item |
| Controlled inventory code | U Unclassified |
| Hazardous material indicator | P No HMIS record; MSDS may apply by end use |
Source: public FLIS/PUB LOG cataloging data.
Why buy from SECO
These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.
In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered
FAQ
What is NSN 5640-00-267-1591?
NSN 5640-00-267-1591 (5640002671591) — Thermal Insulation Block: SECO Parts has 42 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for thermal insulation block in federal supply class 5640 (Wallboard, Building Paper, and Thermal Insulation Materials).
Is NSN 5640-00-267-1591 available?
SECO Parts has 42 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5640-00-267-1591 cost?
SECO quotes NSN 5640-00-267-1591 on request, usually the same business day.
What part numbers cross-reference to NSN 5640-00-267-1591?
Part numbers that cross-reference this NSN include MIL-PRF-2819 CL3, MIL-I-2819, MIL-I-2819 CL3. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names INSULATION BLOCK,THERMAL. Same name is not the same part: check the part numbers.
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