The Underwear,flyer's, cataloged under National Stock Number 8420-01-590-0502, is classified within Federal Supply Class 8420 (Underwear and Nightwear, Men's) of the Clothing, Individual Equipment, and Insignia group. The manufacturer of record is Samtech Llc Dba Massif Div Massif. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 8420-01-590-0502 |
| Primary Part Number | FLAMESTRETCH UNI-M |
| Item Name | Underwear,flyer's |
| FSC / FSG | 8420 / 84 — Underwear and Nightwear, Men's |
| Manufacturer | Samtech Llc Dba Massif Div Massif |
| Status | ACTIVE |
| Garment Size | MEDIUM |
| Color | BLACK MAIN BODY |
| Environmental Protection | ABRASION RESISTANT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FLAMESTRETCH UNI-M PRIMARY | Samtech Llc Dba Massif Div Massif (USA) |
| Reference | Meaning |
|---|---|
| FLAMESTRETCH UNI-M | 3/9 Design control — primary reference Massif Mountain Gear Company, L.l.c. |
NSN 8420-01-590-0502 is a Underwear,flyer's, manufactured by Samtech Llc Dba Massif Div Massif, classified under FSC 8420, Underwear and Nightwear, Men's. Status: active.
NSN 8420-01-590-0502 has 1 manufacturer part number on file: FLAMESTRETCH UNI-M (Samtech Llc Dba Massif Div Massif).
Key specifications for FLAMESTRETCH UNI-M: Garment Size: MEDIUM; Color: BLACK MAIN BODY; Special Features: LIGHTWEIGHT, BREATHABLE, AND EXTREMELY STRETCHY, COMFORTABLE UNION SUIT IDEA FOR ALL COLD WEATHER CONIDITIONS THAT DEMAND SEAMLESS WARMTH FROM HEAD TO TOE; CONTOURED SLEEVES FEATURE A THUMB SLIT FOR EXTRA ROTECTION AND EASY LAYERING ABRASION RESISANT OUTER SURFACE GREAT FOR USE UNDER A DRY SUIT AND ARC HAZARDS HAZARDS; FULL FLAME FLAME RESISTANT CONSTRUCTION WITH PROPRIETARY MASSIF FABRICS; EXTREME FOUR YEAR STRECTCH ALLOWS FOR PERFORMANCE WHEN THE FABRIC IS WET; HIGH WARMTH TO WEIGHT RATIO AND COMPRESSITIVITY FOR EASY PACKING; Environmental Protection: ABRASION RESISTANT. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.