NSN 5310-00-474-9489 · NIIN 004749489 · Part number LM821-21
Lord Corporation Dba Lord Corp · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 76005
Government record, cited
NSN 5310-00-474-9489 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-474-9489. Manufacturer of record part number: LM821-21.
Also searched as5310-00-474-9489 ·
5310004749489 ·
NIIN 004749489 ·
00-474-9489 ·
FSC 5310 Nuts and Washers · CAGE 76005 · LM821-21
Nearby stock numbers← 5310-00-474-9477 Washer, Spring Tension
·
5310-00-474-9514 →
5310-00-474-9489 — Nuts and Washers
Features
Nut,plain,castellated,hexagon — FSC 5310
Width Across Flats: 0.623 INCHES NOMINAL IN
Thread Series: UNF
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.500 INCHES IN
Nut Height: 0.453 INCHES NOMINAL IN
Surface Treatment: CADMIUM OVERALL
Nut Style: CASTELLATED, HEXAGON
Identification
NSN: 5310-00-474-9489
NIIN: 004749489
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: LM821-21
Manufacturer: Lord Corporation Dba Lord Corp
General Description
The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-00-474-9489, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lord Corporation Dba Lord Corp. Government technical data includes 11 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. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file
Frequently Asked Questions
What is NSN 5310-00-474-9489?
NSN 5310-00-474-9489 is a Nut,plain,castellated,hexagon, manufactured by Lord Corporation Dba Lord Corp, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-00-474-9489?
NSN 5310-00-474-9489 has 1 manufacturer part number on file: LM821-21 (Lord Corporation Dba Lord Corp).
What are the specifications of LM821-21?
Key specifications for LM821-21: Width Across Flats: 0.623 INCHES NOMINAL IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.500 INCHES IN. 11 specifications are documented in the U.S. Government catalog.
Is NSN 5310-00-474-9489 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.