FSG: 84 — Clothing, Individual Equipment, and Insignia
General Description
The Undershirt,physical Fitness Unif, cataloged under National Stock Number 8415-01-559-5241, is classified within Federal Supply Class 8415 (Clothing, Special Purpose) of the Clothing, Individual Equipment, and Insignia group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
8415-01-559-5241
Item Name
Undershirt,physical Fitness Unif
FSC / FSG
8415 / 84 — Clothing, Special Purpose
Status
ACTIVE
Garment Size
X-SMALL MAINBODY
Garment Sleeve Length
HALF LENGTH
Nondefinitive Spec/std Data
I TYPE
Procurement Group Code
03526
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.
8415-01-559-5289POSSIBLE MATCH
UNDERSHIRT,PHYSICAL FITNESS UNIF
Possible match (shared part number)
8415-01-559-5312POSSIBLE MATCH
UNDERSHIRT,PHYSICAL FITNESS UNIF
Possible match (shared part number)
8415-01-559-5332POSSIBLE MATCH
UNDERSHIRT,PHYSICAL FITNESS UNIF
Possible match (shared part number)
8415-01-574-2991POSSIBLE MATCH
T-SHIRT,ATHLETE'S
Possible match (shared part number)
8415-01-574-2992POSSIBLE MATCH
T-SHIRT,ATHLETE'S
Possible match (shared part number)
8415-01-574-2993POSSIBLE MATCH
T-SHIRT,ATHLETE'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
16-1-886A
5/9Secondary reference
National Industries for the Blind
NCTRF PD 16-15
3/1Design control — primary reference
Navy Clothing and Textile Research Facility Natick Laboratories
Related Parts
8415-01-559-5289POSSIBLE MATCH
UNDERSHIRT,PHYSICAL FITNESS UNIF
8415-01-559-5312POSSIBLE MATCH
UNDERSHIRT,PHYSICAL FITNESS UNIF
8415-01-559-5332POSSIBLE MATCH
UNDERSHIRT,PHYSICAL FITNESS UNIF
8415-01-574-2991POSSIBLE MATCH
T-SHIRT,ATHLETE'S
8415-01-574-2992POSSIBLE MATCH
T-SHIRT,ATHLETE'S
8415-01-574-2993POSSIBLE MATCH
T-SHIRT,ATHLETE'S
Frequently Asked Questions
What is NSN 8415-01-559-5241?
NSN 8415-01-559-5241 is a Undershirt,physical Fitness Unif, classified under FSC 8415, Clothing, Special Purpose. Status: active.
What NSN replaces 8415-01-559-5241?
6 possible matches (shared part number, not a government interchangeability claim): 8415-01-559-5289, 8415-01-559-5312, 8415-01-559-5332. Verify interchangeability with system specifications before substitution.
What are the specifications of 8415-01-559-5241?
Key specifications for 8415-01-559-5241: Garment Size: X-SMALL MAINBODY; Garment Sleeve Length: HALF LENGTH; Nondefinitive Spec/std Data: I TYPE; Procurement Group Code: 03526. 4 specifications are documented in the U.S. Government catalog.
Is NSN 8415-01-559-5241 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.