FSG: 84 — Clothing, Individual Equipment, and Insignia
General Description
The Undershirt,extreme Cold Weather, cataloged under National Stock Number 8415-00-270-2012, is classified within Federal Supply Class 8415 (Clothing, Special Purpose) of the Clothing, Individual Equipment, and Insignia group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 12 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
8415-00-270-2012
Item Name
Undershirt,extreme Cold Weather
FSC / FSG
8415 / 84 — Clothing, Special Purpose
Status
ACTIVE
Garment Size
SMALL MAINBODY
Garment Sleeve Length
FULL LENGTH
Neck Opening Type
CREW
Procurement Group Code
00783
Color
NATURAL OVERALL
Fiber Material
COTTON
User Designator
MAN AND WOMAN
Cloth-Fabric Name
KNITTED
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
⇄Related Items12
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
8415-00-270-2013POSSIBLE MATCH
UNDERSHIRT,EXTREME COLD WEATHER
Possible match (shared part number)
8415-00-270-2014POSSIBLE MATCH
UNDERSHIRT,EXTREME COLD WEATHER
Possible match (shared part number)
8415-00-270-2015POSSIBLE MATCH
UNDERSHIRT,EXTREME COLD WEATHER
Possible match (shared part number)
8415-00-904-5134POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
Possible match (shared part number)
8415-00-904-5135POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
Possible match (shared part number)
8415-00-904-5136POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
Possible match (shared part number)
8415-00-904-5137POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
Possible match (shared part number)
8415-00-904-5138POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
Possible match (shared part number)
8415-01-051-1174POSSIBLE MATCH
UNDERSHIRT,EXTREME COLD WEATHER
Possible match (shared part number)
8415-01-227-9549POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
MIL-U-17611
5/1Secondary reference
U.S. Government activity
MIL-U-43262
5/9Secondary reference
U.S. Government activity
A-A-50383
4/1Identification reference
Federal Commercial Item Description Promulgated by General Services Administration Washington DC
Related Parts
8415-00-270-2013POSSIBLE MATCH
UNDERSHIRT,EXTREME COLD WEATHER
8415-00-270-2014POSSIBLE MATCH
UNDERSHIRT,EXTREME COLD WEATHER
8415-00-270-2015POSSIBLE MATCH
UNDERSHIRT,EXTREME COLD WEATHER
8415-00-904-5134POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
8415-00-904-5135POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
8415-00-904-5136POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
8415-00-904-5137POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
8415-00-904-5138POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
8415-01-051-1174POSSIBLE MATCH
UNDERSHIRT,EXTREME COLD WEATHER
8415-01-227-9549POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
8415-01-227-9550POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
8415-01-227-9551POSSIBLE MATCH
UNDERSHIRT,COLD WEATHER
Frequently Asked Questions
What is NSN 8415-00-270-2012?
NSN 8415-00-270-2012 is a Undershirt,extreme Cold Weather, classified under FSC 8415, Clothing, Special Purpose. Status: active.
What NSN replaces 8415-00-270-2012?
12 possible matches (shared part number, not a government interchangeability claim): 8415-00-270-2013, 8415-00-270-2014, 8415-00-270-2015. Verify interchangeability with system specifications before substitution.
What are the specifications of 8415-00-270-2012?
Key specifications for 8415-00-270-2012: Garment Size: SMALL MAINBODY; Garment Sleeve Length: FULL LENGTH; Neck Opening Type: CREW; Procurement Group Code: 00783. 8 specifications are documented in the U.S. Government catalog.
Is NSN 8415-00-270-2012 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.