PartsTable TECHNICAL DATA SHEET

NSN 5310-01-657-0157Government record, cited

Washer, Flat5310-01-657-0157

NSN 5310-01-657-0157 · NIIN 016570157 · Part number 134N8.4

Ktsdi Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 7AYE6

Government record, cited

NSN 5310-01-657-0157 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-657-0157. Manufacturer of record part number: 134N8.4.

Also searched as 5310-01-657-0157 · 5310016570157 · NIIN 016570157 · 01-657-0157 · FSC 5310 Nuts and Washers · CAGE 7AYE6 · 134N8.4

Nearby stock numbers ← 5310-01-657-0110 Nut, Self-Locking, Hexagon · 5310-01-657-0227 Nut, Self-Locking, Hexagon →

5310-01-657-0157 — Nuts and Washers

Features

Washer,flat — FSC 5310
Peripheral Shape Style: ROUND
Center Hole Shape Style: ROUND
1 manufacturer part number on file
Manufacturer of record: Ktsdi Llc

Identification

NSN: 5310-01-657-0157
NIIN: 016570157
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 134N8.4
Manufacturer: Ktsdi Llc

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-657-0157, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ktsdi Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-657-0157
Primary Part Number	134N8.4
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Ktsdi Llc
Status	ACTIVE
Peripheral Shape Style	ROUND
Center Hole Shape Style	ROUND

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
134N8.4	Ktsdi Llc (USA)

Reference documents

Reference	Meaning
134N8.4	3/9 Design control — primary reference Kessler Intl Corp

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 5310-01-657-0157?

NSN 5310-01-657-0157 is a Washer,flat, manufactured by Ktsdi Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-657-0157?

NSN 5310-01-657-0157 has 1 manufacturer part number on file: 134N8.4 (Ktsdi Llc).

What are the specifications of 134N8.4?

Key specifications for 134N8.4: Special Features: 01-522-7364, ROUGH TERRAIN CONTAINER HANDLER; Peripheral Shape Style: ROUND; End Item Identification: 01-522-7364, ROUGH TERRAIN CONTAINER HANDLER; Center Hole Shape Style: ROUND. 2 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-657-0157 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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