NSN 6635-01-221-9265 · NIIN 012219265 · Part number H3500
United Standard Industries Inc · FSC 6635 — Physical Properties Testing and Inspection · FSG 66 — Instruments and Laboratory Equipment · CAGE 28210
Government record, cited
NSN 6635-01-221-9265 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-221-9265. Manufacturer of record part number: H3500.
Also searched as6635-01-221-9265 ·
6635012219265 ·
NIIN 012219265 ·
01-221-9265 ·
FSC 6635 Physical Properties Testing and Inspection · CAGE 28210 · H3500 · BORIS
Manufacturer of record: United Standard Industries Inc
Identification
NSN: 6635-01-221-9265
NIIN: 012219265
FSC: 6635 — Physical Properties Testing and Inspection
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: H3500
Manufacturer: United Standard Industries Inc
General Description
The Holder,optical Inspection, cataloged under National Stock Number 6635-01-221-9265, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is United Standard Industries Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Holder,optical Inspection
FSC / FSG
6635 — Physical Properties Testing and Inspection (FSG 66)
Manufacturers
United Standard Industries Inc (CAGE 28210)
Technical Specifications
Parameter
Value
NSN
6635-01-221-9265
Primary Part Number
H3500
Item Name
Holder,optical Inspection
FSC / FSG
6635 / 66 — Physical Properties Testing and Inspection
Manufacturer
United Standard Industries Inc
Status
ACTIVE
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 Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6625-01-263-7953POSSIBLE MATCH
TEST SET,ELECTRONIC CIRCUIT PLUG
Possible match (shared part number)
5330-01-342-5726H-3500POSSIBLE MATCH
RETAINER,PACKING
Possible match (shared part number)Parker-Hannifin Corp Div O-Ring Division
NSN 6635-01-221-9265 is a Holder,optical Inspection, manufactured by United Standard Industries Inc, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
What part numbers are listed for NSN 6635-01-221-9265?
NSN 6635-01-221-9265 has 2 manufacturer part numbers on file: H3500 (United Standard Industries Inc), BORIS (United Standard Industries Inc).
What NSN replaces 6635-01-221-9265?
3 possible matches (shared part number, not a government interchangeability claim): 6625-01-263-7953, 5330-01-342-5726, 5835-01-396-9755. Verify interchangeability with system specifications before substitution.
Is NSN 6635-01-221-9265 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.