PartsTable TECHNICAL DATA SHEET
NSN 8475-01-442-4780Government record, cited

Modification Kit, Helmet8475-01-442-4780

NSN 8475-01-442-4780 · NIIN 014424780 · Part number 90B7948-2
Gentex Corp · FSC 8475 — Specialized Flight Clothing and Accessories · FSG 84 — Clothing, Individual Equipment, and Insignia · CAGE 72724
Government record, cited
NSN 8475-01-442-4780 — this item is cataloged by the U.S. Government under National Stock Number 8475-01-442-4780. Manufacturer of record part number: 90B7948-2.
Also searched as  8475-01-442-4780 · 8475014424780 · NIIN 014424780 · 01-442-4780 · FSC 8475 Specialized Flight Clothing and Accessories · CAGE 72724 · 90B7948-2 · GW 9135-02 · 8475PL1045716
Nearby stock numbers  ·
Features
  • Modification Kit,helmet — FSC 8475
  • Procurement Group Code: 02517
  • Color: GRAY/GREY
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Gentex Corp
Identification
  • NSN: 8475-01-442-4780
  • NIIN: 014424780
  • FSC: 8475 — Specialized Flight Clothing and Accessories
  • FSG: 84 — Clothing, Individual Equipment, and Insignia
  • Primary part number: 90B7948-2
  • Manufacturer: Gentex Corp
General Description

The Modification Kit,helmet, cataloged under National Stock Number 8475-01-442-4780, is classified within Federal Supply Class 8475 (Specialized Flight Clothing and Accessories) of the Clothing, Individual Equipment, and Insignia group. The manufacturer of record is Gentex Corp. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Technical Specifications
ParameterValue
NSN8475-01-442-4780
Primary Part Number90B7948-2
Item NameModification Kit,helmet
FSC / FSG8475 / 84 — Specialized Flight Clothing and Accessories
ManufacturerGentex Corp
StatusACTIVE
Procurement Group Code02517
ColorGRAY/GREY
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
90B7948-2 PRIMARY Gentex Corp (USA)
GW 9135-02 PRIMARY Gentex Corp (USA)
Reference documents
ReferenceMeaning
8475PL1045716 6/9 Informative reference only
Jednolity Indeks Materialowy - Uniform Material Index
No interchangeability data on file.
Other items in FSC 8475 — Specialized Flight Clothing and Accessories
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
8475-00-001-1758
8475-00-001-1758 · Item name not on file
8475-00-001-1759
8475-00-001-1759 · Item name not on file
8475-00-001-6579
COVERALLS,FLYERS' ANTIEXPOSURE
8475-00-004-3666
8475-00-004-3666 · Item name not on file
8475-00-005-1605
8475-00-005-1605 · Item name not on file
8475-00-008-3945
HELMET,FLYER'S
8475-00-008-3946
HELMET,FLYER'S
8475-00-008-3947
HELMET,FLYER'S

Frequently Asked Questions

What is NSN 8475-01-442-4780?

NSN 8475-01-442-4780 is a Modification Kit,helmet, manufactured by Gentex Corp, classified under FSC 8475, Specialized Flight Clothing and Accessories. Status: active.

What part numbers are listed for NSN 8475-01-442-4780?

NSN 8475-01-442-4780 has 2 manufacturer part numbers on file: 90B7948-2 (Gentex Corp), GW 9135-02 (Gentex Corp).

What are the specifications of 90B7948-2?

Key specifications for 90B7948-2: Procurement Group Code: 02517; Color: GRAY/GREY; Special Features: INTEGRATED CHIN/NAPE STRAP CONVERSION KIT; LARGE; USED TO MODIFY THE HGU-55/P, HGU-66/P AND HGU-68/P HELMETS;PERMITS SIMULTANEOUS ADJUSTMENT OF THECHIN STRAP AND NAPE STRAP; C/O 1 EA 88D7553-2 NAPE STRAP PAD, 1 EA 89B7729-1RH NAPE STRAP, 1 EA 89B7730-2 LH NAPE STRAP, 2 EA 93B8471 NAPE STRAP CLAMP ASSEMBLIES, 1 EA 84C6708 CHIN STRAP, 1 EA89C7764 CHIN PAD, 1 EA 77A3608-61B, 10-32 X 3/8 PAN HEAD SCREW, 1 EA 77A3630-34 EXTERNAL TOOTH 5/16 LOCKWASHER, 1 EA 77A3612-4 FLAT WASHER, 1 EA 79A4436 T-NUT, 1 EA 85B7056-2 OBLONG WASHER, 1 EA 85B7056-1 OBLONG EYELET, 1 EA G000-1051-01 URETHANE STRAP GROMMET ANDALL NECESSARY TEMPLATES. 2 specifications are documented in the U.S. Government catalog.

Is NSN 8475-01-442-4780 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.
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