PartsTable TECHNICAL DATA SHEET

NSN 5310-01-006-0243Government record, cited

Washer, Key5310-01-006-0243

NSN 5310-01-006-0243 · NIIN 010060243 · Part number S1323LB

Circor Pumps North America Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 59180

Government record, cited

NSN 5310-01-006-0243 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-006-0243. Manufacturer of record part number: S1323LB.

Also searched as 5310-01-006-0243 · 5310010060243 · NIIN 010060243 · 01-006-0243 · FSC 5310 Nuts and Washers · CAGE 59180 · S1323LB · SF11080ITEM33 · SF10421PC33 · S1313LB · SF10421PC33

Nearby stock numbers ← 5310-01-006-0227 · 5310-01-006-0244 Washer Special →

5310-01-006-0243 — Nuts and Washers

Features

Washer,key — FSC 5310
3 manufacturer part numbers on file
Manufacturer of record: Circor Pumps North America Llc

Identification

NSN: 5310-01-006-0243
NIIN: 010060243
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: S1323LB
Manufacturer: Circor Pumps North America Llc

General Description

The Washer,key, cataloged under National Stock Number 5310-01-006-0243, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Circor Pumps North America Llc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Washer,key
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Circor Pumps North America Llc (CAGE 59180)

Technical Specifications

Parameter	Value
NSN	5310-01-006-0243
Primary Part Number	S1323LB
Item Name	Washer,key
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Circor Pumps North America Llc
Status	ACTIVE

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
SF11080ITEM33	Circor Pumps North America Llc (USA)
S1323LB PRIMARY	Circor Pumps North America Llc (USA)
SF10421PC33	Circor Pumps North America Llc (USA)

Reference documents

Reference	Meaning
SF10421PC33	5/9 Secondary reference Siemens Energy, Inc.
S1313LB	5/9 Secondary reference Circor Pumps North America Llc
S1323LB	5/9 Secondary reference Siemens Energy, Inc.

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 5310-01-006-0243?

NSN 5310-01-006-0243 is a Washer,key, manufactured by Circor Pumps North America Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-006-0243?

NSN 5310-01-006-0243 has 3 manufacturer part numbers on file: SF11080ITEM33 (Circor Pumps North America Llc), S1323LB (Circor Pumps North America Llc), SF10421PC33 (Circor Pumps North America Llc).

Is NSN 5310-01-006-0243 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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