NSN 5970-01-005-2884 · NIIN 010052884 · Part number 901-129
Littelfuse, Inc. · FSC 5970 — Electrical Insulators and Insulating Materials · FSG 59 — Electrical and Electronic Equipment Components · CAGE 75915
Government record, cited
NSN 5970-01-005-2884 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-005-2884. Manufacturer of record part number: 901-129.
Also searched as5970-01-005-2884 ·
5970010052884 ·
NIIN 010052884 ·
01-005-2884 ·
FSC 5970 Electrical Insulators and Insulating Materials · CAGE 75915 · 901-129 · 1400-0090 · 1400-0090 · 1400-0090
FSC: 5970 — Electrical Insulators and Insulating Materials
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: 901-129
Manufacturer: Littelfuse, Inc.
General Description
The Insulator,washer, cataloged under National Stock Number 5970-01-005-2884, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Littelfuse, Inc.. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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
5970-01-005-2884
Primary Part Number
901-129
Item Name
Insulator,washer
FSC / FSG
5970 / 59 — Electrical Insulators and Insulating Materials
Manufacturer
Littelfuse, Inc.
Status
ACTIVE
Style Designator
ROUND, FLAT
Outside Diameter
0.625 INCHES NOMINAL IN
Inside Diameter
0.500 INCHES NOMINAL IN
Material
RUBBER CHLOROPRENE CLASS CR OVERALL
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 Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5310-01-013-78461400-0090POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)The Boeing Company Div Defense
5935-01-037-0808901-129POSSIBLE MATCH
CONNECTOR,PLUG,ELECTRICAL
Possible match (shared part number)Amphenol Corp Div Amphenol Aerospace Operations
1430-01-270-089114000090POSSIBLE MATCH
MODIFICATION KIT,GUIDED MISSILES
Possible match (shared part number)Us Army Aviation and Missile Command
NSN 5970-01-005-2884 is a Insulator,washer, manufactured by Littelfuse, Inc., classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
What part numbers are listed for NSN 5970-01-005-2884?
NSN 5970-01-005-2884 has 2 manufacturer part numbers on file: 1400-0090 (Keysight Technologies Inc), 901-129 (Littelfuse, Inc.).
What NSN replaces 5970-01-005-2884?
3 possible matches (shared part number, not a government interchangeability claim): 5310-01-013-7846, 5935-01-037-0808, 1430-01-270-0891. Verify interchangeability with system specifications before substitution.
What are the specifications of 901-129?
Key specifications for 901-129: Overall Height: 0.031 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 0.625 INCHES NOMINAL IN; Inside Diameter: 0.500 INCHES NOMINAL IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5970-01-005-2884 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.