NSN 5340-00-019-7492 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-019-7492. Manufacturer of record part number: 63121.
Also searched as5340-00-019-7492 ·
5340000197492 ·
NIIN 000197492 ·
00-019-7492 ·
FSC 5340 Hardware, Commercial · CAGE 57733 · 63121
Thread Size and Series/type Designator: S0.875-18 UN
Inside Diameter Length: 0.531 INCHES NOMINAL IN
Round Cap Outside Surface Condition: RIBBED
Identification
NSN: 5340-00-019-7492
NIIN: 000197492
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: 63121
Manufacturer: Stewart-Warner Corporation
General Description
The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-019-7492, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Stewart-Warner Corporation. Government technical data includes 7 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. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5340-00-019-7492
Primary Part Number
63121
Item Name
Cap,protective,dust and Moisture
FSC / FSG
5340 / 53 — Hardware, Commercial
Manufacturer
Stewart-Warner Corporation
Status
ACTIVE
Design Type
THREADED
Overall Diameter
1.020 INCHES NOMINAL IN
Thread Class
2B
Material
ZINC ALLOY
Thread Size and Series/type Designator
S0.875-18 UN
Inside Diameter Length
0.531 INCHES NOMINAL IN
Round Cap Outside Surface Condition
RIBBED
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
Unit of Issue
EA
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5315-00-051-42066312-1POSSIBLE MATCH
KEY,MACHINE
Possible match (shared part number)Goodrich Aerospace Canada Ltd
NSN 5340-00-019-7492 is a Cap,protective,dust and Moisture, manufactured by Stewart-Warner Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
What part numbers are listed for NSN 5340-00-019-7492?
NSN 5340-00-019-7492 has 1 manufacturer part number on file: 63121 (Stewart-Warner Corporation).
What NSN replaces 5340-00-019-7492?
6 possible matches (shared part number, not a government interchangeability claim): 5315-00-051-4206, 5977-00-467-4024, 8345-00-782-7169. Verify interchangeability with system specifications before substitution.
What are the specifications of 63121?
Key specifications for 63121: Design Type: THREADED; Overall Diameter: 1.020 INCHES NOMINAL IN; Thread Class: 2B; Material: ZINC ALLOY. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5340-00-019-7492 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.