NSN 5310-01-240-7220 · NIIN 012407220 · Part number 642A174 PIECE 2
General Electric Company · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 01289
Government record, cited
NSN 5310-01-240-7220 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-240-7220. Manufacturer of record part number: 642A174 PIECE 2.
Also searched as5310-01-240-7220 ·
5310012407220 ·
NIIN 012407220 ·
01-240-7220 ·
FSC 5310 Nuts and Washers · CAGE 01289 · 642A174 PIECE 2
Material Document and Classification: QQ-S-636 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Material Thickness: 0.062 INCHES NOMINAL IN
Length Across Flats: 2.120 INCHES NOMINAL IN
Material: STEEL COMP 1017 OVERALL
Hole Diameter: 0.680 INCHES NOMINAL IN
1 manufacturer part number on file
Manufacturer of record: General Electric Company
Identification
NSN: 5310-01-240-7220
NIIN: 012407220
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 642A174 PIECE 2
Manufacturer: General Electric Company
General Description
The Washer,lock, cataloged under National Stock Number 5310-01-240-7220, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 5 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
Parameter
Value
NSN
5310-01-240-7220
Primary Part Number
642A174 PIECE 2
Item Name
Washer,lock
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
General Electric Company
Status
ACTIVE
Material Document and Classification
QQ-S-636 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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 5310-01-240-7220?
NSN 5310-01-240-7220 is a Washer,lock, manufactured by General Electric Company, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-240-7220?
NSN 5310-01-240-7220 has 1 manufacturer part number on file: 642A174 PIECE 2 (General Electric Company).
What are the specifications of 642A174 PIECE 2?
Key specifications for 642A174 PIECE 2: Material Document and Classification: QQ-S-636 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Material Thickness: 0.062 INCHES NOMINAL IN; Length Across Flats: 2.120 INCHES NOMINAL IN; Special Features: DULL FINISH. 5 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-240-7220 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.