Washer, Flat5310-01-142-3642

NSN 5310-01-142-3642 · NIIN 011423642 · Part number 5035L026-1

Circor Aerospace, Inc. Div Circor · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 50601

Government record, cited

NSN 5310-01-142-3642 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-142-3642. Manufacturer of record part number: 5035L026-1.

Also searched as 5310-01-142-3642 · 5310011423642 · NIIN 011423642 · 01-142-3642 · FSC 5310 Nuts and Washers · CAGE 50601 · 5035L026-1

Nearby stock numbers ← 5310-01-142-3641 Nut, Self-Locking, Hexagon · 5310-01-142-4160 →

5310-01-142-3642 — Nuts and Washers

Features

Washer,flat — FSC 5310
Overall Diameter: 0.281 INCHES NOMINAL IN
Material Document and Classification: MIL-S-6758 COND 4 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-18729 COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape Style: RECTANGULAR
Peripheral Shape Style: ROUND
Material: STEEL COMP 4130 OVERALL
Center Hole Shape Style: ROUND
Hole Diameter: 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN

Identification

NSN: 5310-01-142-3642
NIIN: 011423642
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 5035L026-1
Manufacturer: Circor Aerospace, Inc. Div Circor

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-142-3642, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Circor Aerospace, Inc. Div Circor. Government technical data includes 8 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	5310-01-142-3642
Primary Part Number	5035L026-1
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Circor Aerospace, Inc. Div Circor
Status	ACTIVE
Overall Diameter	0.281 INCHES NOMINAL IN
Material Document and Classification	MIL-S-6758 COND 4 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-18729 COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape Style	RECTANGULAR
Peripheral Shape Style	ROUND
Material	STEEL COMP 4130 OVERALL
Center Hole Shape Style	ROUND
Hole Diameter	0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Thickness	0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
5035L026-1 PRIMARY	Circor Aerospace, Inc. Div Circor (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 5310-01-142-3642?

NSN 5310-01-142-3642 is a Washer,flat, manufactured by Circor Aerospace, Inc. Div Circor, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-142-3642?

NSN 5310-01-142-3642 has 1 manufacturer part number on file: 5035L026-1 (Circor Aerospace, Inc. Div Circor).

What are the specifications of 5035L026-1?

Key specifications for 5035L026-1: Overall Diameter: 0.281 INCHES NOMINAL IN; Material Document and Classification: MIL-S-6758 COND 4 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-18729 COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-142-3642 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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