FSG: 84 — Clothing, Individual Equipment, and Insignia
General Description
The Undershirt,man's, cataloged under National Stock Number 8420-01-540-0612, is classified within Federal Supply Class 8420 (Underwear and Nightwear, Men's) of the Clothing, Individual Equipment, and Insignia group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government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
8420-01-540-0612
Item Name
Undershirt,man's
FSC / FSG
8420 / 84 — Underwear and Nightwear, Men's
Status
ACTIVE
Garment Size
X-SMALL MAINBODY
Garment Sleeve Length
QUARTER LENGTH
Neck Opening Type
CREW
Nondefinitive Spec/std Data
I TYPE
Procurement Group Code
03291
Color
BLUE, NAVY OVERALL
Fiber Material
COTTON
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
8420-01-540-0614POSSIBLE MATCH
UNDERSHIRT,MAN'S
Possible match (shared part number)
8420-01-540-1758POSSIBLE MATCH
UNDERSHIRT,MAN'S
Possible match (shared part number)
8420-01-540-1759POSSIBLE MATCH
UNDERSHIRT,MAN'S
Possible match (shared part number)
8420-01-540-1760POSSIBLE MATCH
UNDERSHIRT,MAN'S
Possible match (shared part number)
8420-01-540-1761POSSIBLE MATCH
UNDERSHIRT,MAN'S
Possible match (shared part number)
8420-01-540-1762POSSIBLE MATCH
UNDERSHIRT,MAN'S
Possible match (shared part number)
8420-01-546-1470POSSIBLE MATCH
UNDERSHIRT,MAN'S
Possible match (shared part number)
8420-01-546-1474POSSIBLE MATCH
UNDERSHIRT,MAN'S
Possible match (shared part number)
8420-01-546-1478POSSIBLE MATCH
UNDERSHIRT,MAN'S
Possible match (shared part number)
8420-01-546-1480POSSIBLE MATCH
UNDERSHIRT,MAN'S
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
A-A-50013E
4/1Identification reference
Federal Commercial Item Description Promulgated by General Services Administration Washington DC
Related Parts
8420-01-540-0614POSSIBLE MATCH
UNDERSHIRT,MAN'S
8420-01-540-1758POSSIBLE MATCH
UNDERSHIRT,MAN'S
8420-01-540-1759POSSIBLE MATCH
UNDERSHIRT,MAN'S
8420-01-540-1760POSSIBLE MATCH
UNDERSHIRT,MAN'S
8420-01-540-1761POSSIBLE MATCH
UNDERSHIRT,MAN'S
8420-01-540-1762POSSIBLE MATCH
UNDERSHIRT,MAN'S
8420-01-546-1470POSSIBLE MATCH
UNDERSHIRT,MAN'S
8420-01-546-1474POSSIBLE MATCH
UNDERSHIRT,MAN'S
8420-01-546-1478POSSIBLE MATCH
UNDERSHIRT,MAN'S
8420-01-546-1480POSSIBLE MATCH
UNDERSHIRT,MAN'S
8420-01-546-1481POSSIBLE MATCH
UNDERSHIRT,MAN'S
Frequently Asked Questions
What is NSN 8420-01-540-0612?
NSN 8420-01-540-0612 is a Undershirt,man's, classified under FSC 8420, Underwear and Nightwear, Men's. Status: active.
What NSN replaces 8420-01-540-0612?
11 possible matches (shared part number, not a government interchangeability claim): 8420-01-540-0614, 8420-01-540-1758, 8420-01-540-1759. Verify interchangeability with system specifications before substitution.
What are the specifications of 8420-01-540-0612?
Key specifications for 8420-01-540-0612: Garment Size: X-SMALL MAINBODY; Garment Sleeve Length: QUARTER LENGTH; Neck Opening Type: CREW; Nondefinitive Spec/std Data: I TYPE. 7 specifications are documented in the U.S. Government catalog.
Is NSN 8420-01-540-0612 hazardous material?
No hazard code in the DLA record (HMIC N). 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.