PartsTable TECHNICAL DATA SHEET

NSN 5310-01-149-5775Government record, cited

Nut, Plain, Castellated, Hexagon5310-01-149-5775

NSN 5310-01-149-5775 · NIIN 011495775 · Part number 145R3118-2

The Boeing Company · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 77272

Government record, cited

NSN 5310-01-149-5775 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-149-5775. Manufacturer of record part number: 145R3118-2.

Also searched as 5310-01-149-5775 · 5310011495775 · NIIN 011495775 · 01-149-5775 · FSC 5310 Nuts and Washers · CAGE 77272 · 145R3118-2 · 145R3118-1

Nearby stock numbers ← 5310-01-149-5575 · 5310-01-149-5843 Washer, Flat →

5310-01-149-5775 — Nuts and Washers

Features

Nut,plain,castellated,hexagon — FSC 5310
2 manufacturer part numbers on file
Manufacturer of record: The Boeing Company

Identification

NSN: 5310-01-149-5775
NIIN: 011495775
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 145R3118-2
Manufacturer: The Boeing Company

General Description

The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-01-149-5775, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Nut,plain,castellated,hexagon
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	The Boeing Company (CAGE 77272); Leonardo Spa Helicopters Division - Production Site (CAGE A0126)

Technical Specifications

Parameter	Value
NSN	5310-01-149-5775
Primary Part Number	145R3118-2
Item Name	Nut,plain,castellated,hexagon
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	The Boeing Company
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
145R3118-2 PRIMARY	The Boeing Company (USA)
145R3118-2	Leonardo Spa Helicopters Division - Production Site (ITA)

Reference documents

Reference	Meaning
145R3118-1	5/9 Secondary reference The Boeing Company

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 5310-01-149-5775?

NSN 5310-01-149-5775 is a Nut,plain,castellated,hexagon, manufactured by The Boeing Company, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-149-5775?

NSN 5310-01-149-5775 has 2 manufacturer part numbers on file: 145R3118-2 (The Boeing Company), 145R3118-2 (Leonardo Spa Helicopters Division - Production Site).

Is NSN 5310-01-149-5775 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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