PartsTable TECHNICAL DATA SHEET
NSN 5310-01-050-3771Government record, cited

Nut, Self-Locking, Hexagon5310-01-050-3771

NSN 5310-01-050-3771 · NIIN 010503771 · Part number LM204-153
Lord Corporation Dba Lord Corp · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 76005
Government record, cited
NSN 5310-01-050-3771 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-050-3771. Manufacturer of record part number: LM204-153.
Also searched as  5310-01-050-3771 · 5310010503771 · NIIN 010503771 · 01-050-3771 · FSC 5310 Nuts and Washers · CAGE 76005 · LM204-153
Nearby stock numbers  ·
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Width Across Flats: 0.500 INCHES NOMINAL IN
  • Thread Series: UNF
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 0.312 INCHES IN
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
  • Nut Height: 0.340 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM OVERALL
Identification
  • NSN: 5310-01-050-3771
  • NIIN: 010503771
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: LM204-153
  • Manufacturer: Lord Corporation Dba Lord Corp
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-050-3771, 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.

Technical Specifications
ParameterValue
NSN5310-01-050-3771
Primary Part NumberLM204-153
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerLord Corporation Dba Lord Corp
StatusACTIVE
Width Across Flats0.500 INCHES NOMINAL IN
Thread SeriesUNF
Thread DirectionRIGHT-HAND
Nominal Thread Size0.312 INCHES IN
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Nut Height0.340 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
Nut StyleHEXAGON
Thread Class3B
Thread Quantity Per Inch24
MaterialSTEEL COMP 1117 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
LM204-153 PRIMARY Lord Corporation Dba Lord Corp (USA)
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
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 5310-01-050-3771?

NSN 5310-01-050-3771 is a Nut,self-Locking,hexagon, manufactured by Lord Corporation Dba Lord Corp, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-050-3771?

NSN 5310-01-050-3771 has 1 manufacturer part number on file: LM204-153 (Lord Corporation Dba Lord Corp).

What are the specifications of LM204-153?

Key specifications for LM204-153: Width Across Flats: 0.500 INCHES NOMINAL IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.312 INCHES IN. 11 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-050-3771 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.
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