NSN 5330-00-477-1971 · NIIN 004771971 · Part number 939-99C
Perko Inc · FSC 5330 — Packing and Gasket Materials · FSG 53 — Hardware and Abrasives · CAGE 46576
Government record, cited
NSN 5330-00-477-1971 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-477-1971. Manufacturer of record part number: 939-99C.
Also searched as5330-00-477-1971 ·
5330004771971 ·
NIIN 004771971 ·
00-477-1971 ·
FSC 5330 Packing and Gasket Materials · CAGE 46576 · 939-99C · 1-939
Supplementary Features: CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
1 manufacturer part number on file
Manufacturer of record: Perko Inc
Identification
NSN: 5330-00-477-1971
NIIN: 004771971
FSC: 5330 — Packing and Gasket Materials
FSG: 53 — Hardware and Abrasives
Primary part number: 939-99C
Manufacturer: Perko Inc
General Description
The Gasket, cataloged under National Stock Number 5330-00-477-1971, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Perko Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
5330-00-477-1971
Primary Part Number
939-99C
Item Name
Gasket
FSC / FSG
5330 / 53 — Packing and Gasket Materials
Manufacturer
Perko Inc
Status
ACTIVE
Supplementary Features
CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3010-00-496-40711939POSSIBLE MATCH
DISK,CLUTCH,NONVEHICULAR
Possible match (shared part number)Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5330-00-593-21871939POSSIBLE MATCH
GASKET
Possible match (shared part number)Dana Automotive Systems Group, Llc Dba Dana Sealing Products
1650-00-698-6540POSSIBLE MATCH
LEVER,MECHANICAL CONTROL
Possible match (shared part number)
5136-00-825-7101POSSIBLE MATCH
TAP,THREAD CUTTING
Possible match (shared part number)
4935-00-911-49191939POSSIBLE MATCH
BLOCK ASSEMBLY,CYLINDER
Possible match (shared part number)Eaton Aerospace, Llc Dba Jackson South
2805-01-044-0871S-2529POSSIBLE MATCH
VALVE,POPPET,ENGINE
Possible match (shared part number)Eaton Corp Dba Eaton Aerospace Jackson
5310-01-086-1026193-9POSSIBLE MATCH
WASHER,LOCK
Possible match (shared part number)Cnh Industrial America Llc Dba Cnh America
NSN 5330-00-477-1971 is a Gasket, manufactured by Perko Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
What part numbers are listed for NSN 5330-00-477-1971?
NSN 5330-00-477-1971 has 1 manufacturer part number on file: 939-99C (Perko Inc).
What NSN replaces 5330-00-477-1971?
9 possible matches (shared part number, not a government interchangeability claim): 3010-00-496-4071, 5330-00-593-2187, 1650-00-698-6540. Verify interchangeability with system specifications before substitution.
What are the specifications of 939-99C?
Key specifications for 939-99C: Supplementary Features: CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200; Special Features: STYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200. 1 specification is documented in the U.S. Government catalog.
Is NSN 5330-00-477-1971 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.