Washer, Flat5310-01-557-0134

NSN 5310-01-557-0134 · NIIN 015570134 · Part number 000311124

Core Industries Inc. Dba Mueller Steam Specialty · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 76588

Government record, cited

NSN 5310-01-557-0134 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-557-0134. Manufacturer of record part number: 000311124.

Also searched as 5310-01-557-0134 · 5310015570134 · NIIN 015570134 · 01-557-0134 · FSC 5310 Nuts and Washers · CAGE 76588 · 000311124 · AN-3.0-72DI-U IT6 P/N 000311124

Nearby stock numbers ← 5310-01-557-0131 Washer, Flat · 5310-01-557-0239 Washer, Flat →

5310-01-557-0134 — Nuts and Washers

Features

Washer,flat — FSC 5310
Material: STEEL COMP 316 OVERALL
2 manufacturer part numbers on file
Manufacturer of record: Core Industries Inc. Dba Mueller Steam Specialty

Identification

NSN: 5310-01-557-0134
NIIN: 015570134
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 000311124
Manufacturer: Core Industries Inc. Dba Mueller Steam Specialty

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-557-0134, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Core Industries Inc. Dba Mueller Steam Specialty. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-557-0134
Primary Part Number	000311124
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Core Industries Inc. Dba Mueller Steam Specialty
Status	ACTIVE
Material	STEEL COMP 316 OVERALL

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
AN-3.0-72DI-U IT6 P/N 000311124	Core Industries Inc. Dba Mueller Steam Specialty (USA)
000311124 PRIMARY	Core Industries Inc. Dba Mueller Steam Specialty (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 5310-01-557-0134?

NSN 5310-01-557-0134 is a Washer,flat, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-557-0134?

NSN 5310-01-557-0134 has 2 manufacturer part numbers on file: AN-3.0-72DI-U IT6 P/N 000311124 (Core Industries Inc. Dba Mueller Steam Specialty), 000311124 (Core Industries Inc. Dba Mueller Steam Specialty).

What are the specifications of 000311124?

Key specifications for 000311124: Part Name Assigned by Controlling Agency: WASHER; End Item Identification: VALVE, CHECK 3.0 IN IN; Material: STEEL COMP 316 OVERALL. 1 specification is documented in the U.S. Government catalog.

Is NSN 5310-01-557-0134 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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