FSG: 84 — Clothing, Individual Equipment, and Insignia
General Description
The Undershirt, cataloged under National Stock Number 8415-01-504-8531, is classified within Federal Supply Class 8415 (Clothing, Special Purpose) of the Clothing, Individual Equipment, and Insignia group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
8415-01-504-8531
Item Name
Undershirt
FSC / FSG
8415 / 84 — Clothing, Special Purpose
Status
ACTIVE
Procurement Group Code
02854
Color
BROWN
Environmental Protection
MOISTURE MANAGEMENT PROPERTIES
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
8415-01-504-8541POSSIBLE MATCH
UNDERSHIRT
Possible match (shared part number)
8415-01-504-8542POSSIBLE MATCH
UNDERSHIRT
Possible match (shared part number)
8415-01-504-8543POSSIBLE MATCH
UNDERSHIRT
Possible match (shared part number)
8415-01-504-8544POSSIBLE MATCH
UNDERSHIRT
Possible match (shared part number)
8415-01-504-8545POSSIBLE MATCH
UNDERSHIRT
Possible match (shared part number)
8415-01-504-8546POSSIBLE MATCH
UNDERSHIRT
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
CR/PD 03-10
3/1Design control — primary reference
U.S. Government activity
Related Parts
8415-01-504-8541POSSIBLE MATCH
UNDERSHIRT
8415-01-504-8542POSSIBLE MATCH
UNDERSHIRT
8415-01-504-8543POSSIBLE MATCH
UNDERSHIRT
8415-01-504-8544POSSIBLE MATCH
UNDERSHIRT
8415-01-504-8545POSSIBLE MATCH
UNDERSHIRT
8415-01-504-8546POSSIBLE MATCH
UNDERSHIRT
Frequently Asked Questions
What is NSN 8415-01-504-8531?
NSN 8415-01-504-8531 is a Undershirt, classified under FSC 8415, Clothing, Special Purpose. Status: active.
What NSN replaces 8415-01-504-8531?
6 possible matches (shared part number, not a government interchangeability claim): 8415-01-504-8541, 8415-01-504-8542, 8415-01-504-8543. Verify interchangeability with system specifications before substitution.
What are the specifications of 8415-01-504-8531?
Key specifications for 8415-01-504-8531: Procurement Group Code: 02854; Color: BROWN; Special Features: SHORT SLEEVE, CREWNECK, X-SMALL, QUANTITY UNIT PACK-30; Environmental Protection: MOISTURE MANAGEMENT PROPERTIES. 3 specifications are documented in the U.S. Government catalog.
Is NSN 8415-01-504-8531 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.