PartsTable TECHNICAL DATA SHEET

NSN 5310-01-694-2823Government record, cited

Nut, Self-Locking, Extended Washer5310-01-694-2823

NSN 5310-01-694-2823 · NIIN 016942823 · Part number 12561700-9

U S Army Tank Automotive Command Amsta-Im-Mm · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 19207

Government record, cited

NSN 5310-01-694-2823 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-694-2823. Manufacturer of record part number: 12561700-9.

Also searched as 5310-01-694-2823 · 5310016942823 · NIIN 016942823 · 01-694-2823 · FSC 5310 Nuts and Washers · CAGE 19207 · 12561700-9 · 12561700

Nearby stock numbers ← 5310-01-694-2789 Nut, Self-Locking, Hexagon · 5310-01-694-2867 Washer, Flat →

5310-01-694-2823 — Nuts and Washers

Features

Nut,self-Locking,extended Washer — FSC 5310
Washer Outside Diameter: 0.660 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN
Width Across Flats: 0.489 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
Thread Series: UNIFIED NATIONAL COARSE (UNC)
Washer Thickness: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.312 INCHES IN
Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT

Identification

NSN: 5310-01-694-2823
NIIN: 016942823
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 12561700-9
Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm

General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-694-2823, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-694-2823
Primary Part Number	12561700-9
Item Name	Nut,self-Locking,extended Washer
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	U S Army Tank Automotive Command Amsta-Im-Mm
Status	ACTIVE
Washer Outside Diameter	0.660 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN
Width Across Flats	0.489 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
Thread Series	UNIFIED NATIONAL COARSE (UNC)
Washer Thickness	0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
Thread Direction	RIGHT-HAND
Nominal Thread Size	0.312 INCHES IN
Locking Feature	PREVAILING TORQUE WITH NONMETALLIC INSERT
Nut Style	HEXAGON
Thread Class	3B
Thread Quantity Per Inch	18
Material	PLASTIC NYLON LOCKING INSERT

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

⇄ Related Items 7

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5310-01-696-401112561700-7 POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm

5310-01-696-401512561700-1 POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm

5310-01-696-402112561700-17 POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm

5310-01-696-402712561700-15 POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm

5310-01-696-403612561700-19 POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm

5310-01-696-404712561700-5 POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm

5310-01-696-405112561700-21 POSSIBLE MATCH

NUT,PLAIN,EXTENDED WASHER,HEXAGO

Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm

Cross-Reference Index

Part Number	Manufacturer
12561700-9 PRIMARY	U S Army Tank Automotive Command Amsta-Im-Mm (USA)

Reference documents

Reference	Meaning
12561700	D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm

Related Parts

5310-01-696-4011POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

12561700-7

5310-01-696-4015POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

12561700-1

5310-01-696-4021POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

12561700-17

5310-01-696-4027POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

12561700-15

5310-01-696-4036POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

12561700-19

5310-01-696-4047POSSIBLE MATCH

NUT,SELF-LOCKING,EXTENDED WASHER

12561700-5

5310-01-696-4051POSSIBLE MATCH

NUT,PLAIN,EXTENDED WASHER,HEXAGO

12561700-21

Frequently Asked Questions

What is NSN 5310-01-694-2823?

NSN 5310-01-694-2823 is a Nut,self-Locking,extended Washer, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-694-2823?

NSN 5310-01-694-2823 has 1 manufacturer part number on file: 12561700-9 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 5310-01-694-2823?

7 possible matches (shared part number, not a government interchangeability claim): 5310-01-696-4011, 5310-01-696-4015, 5310-01-696-4021. Verify interchangeability with system specifications before substitution.

What are the specifications of 12561700-9?

Key specifications for 12561700-9: Overall Height: 0.338 INCHES MAXIMUM IN; Washer Outside Diameter: 0.660 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN; Width Across Flats: 0.489 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC). 11 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-694-2823 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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