PartsTable TECHNICAL DATA SHEET

NSN 5310-00-012-2901Government record, cited

Nut, Plain, Slotted, Hexagon5310-00-012-2901

NSN 5310-00-012-2901 · NIIN 000122901 · Part number 1B4445

Caterpillar Inc Div Caterpillar Defense · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 11083

Government record, cited

NSN 5310-00-012-2901 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-012-2901. Manufacturer of record part number: 1B4445.

Also searched as 5310-00-012-2901 · 5310000122901 · NIIN 000122901 · 00-012-2901 · FSC 5310 Nuts and Washers · CAGE 11083 · 1B4445 · 122901 · 122901 · 122901

Nearby stock numbers ← 5310-00-012-2899 · 5310-00-012-2904 →

5310-00-012-2901 — Nuts and Washers

Features

Nut,plain,slotted,hexagon — FSC 5310
Width Across Flats: 2.188 INCHES NOMINAL IN
Thread Series: UNF
Thread Direction: RIGHT-HAND
Nominal Thread Size: 1.500 INCHES IN
Nut Height: 1.312 INCHES NOMINAL IN
Nut Style: SLOTTED, HEXAGON
Thread Class: 3B

Identification

NSN: 5310-00-012-2901
NIIN: 000122901
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 1B4445
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-012-2901, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 10 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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	5310-00-012-2901
Primary Part Number	1B4445
Item Name	Nut,plain,slotted,hexagon
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE
Width Across Flats	2.188 INCHES NOMINAL IN
Thread Series	UNF
Thread Direction	RIGHT-HAND
Nominal Thread Size	1.500 INCHES IN
Nut Height	1.312 INCHES NOMINAL IN
Nut Style	SLOTTED, HEXAGON
Thread Class	3B
Thread Quantity Per Inch	12
Material	STEEL OVERALL
Bearing Surface Type	CHAMFERED OR WASHER FACED

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 6

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

5950-00-155-051261660-015 POSSIBLE MATCH

TRANSFORMER,AUDIO FREQUENCY

Possible match (shared part number)Dynalec Corporation

5365-00-674-5156122901 POSSIBLE MATCH

SPACER,PLATE

Possible match (shared part number)Meggitt North Hollywood Inc

2835-00-799-579312290-1 POSSIBLE MATCH

NOZZLE,TURBINE,NONAIRCRAFT GAS T

Possible match (shared part number)Solar Turbines Incorporated Dba Solar Turbines Incorporated

4710-01-174-698412290-1 POSSIBLE MATCH

TUBE ASSEMBLY,METAL

Possible match (shared part number)Universal Propulsion Company Inc Dba Goodrich Div Universal Propulsion Co., Inc.

5315-01-398-74241A4673 POSSIBLE MATCH

PIN,GROOVED,HEADLESS

Possible match (shared part number)Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney

5945-01-414-3767 POSSIBLE MATCH

RELAY,ELECTROMAGNETIC

Possible match (shared part number)

Cross-Reference Index

Part Number	Manufacturer
122901	Army Weapons Command Attn Amswe-Ree-S (USA)
1B4445 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)

Reference documents

Reference	Meaning
122901	5/9 Secondary reference General Motors Corp
122901	C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc

Related Parts

5950-00-155-0512POSSIBLE MATCH

TRANSFORMER,AUDIO FREQUENCY

61660-015

5365-00-674-5156POSSIBLE MATCH

SPACER,PLATE

122901

2835-00-799-5793POSSIBLE MATCH

NOZZLE,TURBINE,NONAIRCRAFT GAS T

12290-1

4710-01-174-6984POSSIBLE MATCH

TUBE ASSEMBLY,METAL

12290-1

5315-01-398-7424POSSIBLE MATCH

PIN,GROOVED,HEADLESS

1A4673

5945-01-414-3767POSSIBLE MATCH

RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5310-00-012-2901?

NSN 5310-00-012-2901 is a Nut,plain,slotted,hexagon, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-00-012-2901?

NSN 5310-00-012-2901 has 2 manufacturer part numbers on file: 122901 (Army Weapons Command Attn Amswe-Ree-S), 1B4445 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5310-00-012-2901?

6 possible matches (shared part number, not a government interchangeability claim): 5950-00-155-0512, 5365-00-674-5156, 2835-00-799-5793. Verify interchangeability with system specifications before substitution.

What are the specifications of 1B4445?

Key specifications for 1B4445: Width Across Flats: 2.188 INCHES NOMINAL IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.500 INCHES IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 5310-00-012-2901 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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