PartsTable TECHNICAL DATA SHEET

NSN 5310-01-572-9181Government record, cited

Nut, Plain, Round5310-01-572-9181

NSN 5310-01-572-9181 · NIIN 015729181 · Part number RP557-1

Lockheed Martin Corporation · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 0L1E5

Government record, cited

NSN 5310-01-572-9181 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-572-9181. Manufacturer of record part number: RP557-1.

Also searched as 5310-01-572-9181 · 5310015729181 · NIIN 015729181 · 01-572-9181 · FSC 5310 Nuts and Washers · CAGE 0L1E5 · RP557-1

Nearby stock numbers ← 5310-01-572-9180 Nut, Plain, Hexagon · 5310-01-572-9272 Washer, Flat →

5310-01-572-9181 — Nuts and Washers

Features

Nut,plain,round — FSC 5310
1 manufacturer part number on file
Manufacturer of record: Lockheed Martin Corporation

Identification

NSN: 5310-01-572-9181
NIIN: 015729181
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: RP557-1
Manufacturer: Lockheed Martin Corporation

General Description

The Nut,plain,round, cataloged under National Stock Number 5310-01-572-9181, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. 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	5310-01-572-9181
Primary Part Number	RP557-1
Item Name	Nut,plain,round
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Lockheed Martin Corporation
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL Q — CCL Item — Commerce Control List
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
RP557-1 PRIMARY	Lockheed Martin Corporation (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 5310-01-572-9181?

NSN 5310-01-572-9181 is a Nut,plain,round, manufactured by Lockheed Martin Corporation, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-572-9181?

NSN 5310-01-572-9181 has 1 manufacturer part number on file: RP557-1 (Lockheed Martin Corporation).

What are the specifications of RP557-1?

Key specifications for RP557-1: End Item Identification: U-2. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-572-9181 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.

What is the DEMIL code for NSN 5310-01-572-9181?

NSN 5310-01-572-9181 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

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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