PartsTable TECHNICAL DATA SHEET

NSN 5310-00-394-6440Government record, cited

Nut, Plain, Cap5310-00-394-6440

NSN 5310-00-394-6440 · NIIN 003946440

FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5310-00-394-6440 · 5310003946440 · NIIN 003946440 · 00-394-6440 · FSC 5310 Nuts and Washers · SK619807 · 4256 · N13312PC4256

Nearby stock numbers ← 5310-00-394-6439 Nut, Plain, Cap · 5310-00-394-6510 Washer, Split →

5310-00-394-6440 — Nuts and Washers

Features

Nut,plain,cap — FSC 5310
Width Across Flats: 1.690 INCHES NOMINAL IN
Thread Series: UNIFIED NATIONAL COARSE (UNC)
Thread Direction: RIGHT-HAND
Nominal Thread Size: 1.000 INCHES IN
Nut Height: 3.500 INCHES NOMINAL IN
Nut Style: CAP
Thread Class: 3B

Identification

NSN: 5310-00-394-6440
NIIN: 003946440
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Nut,plain,cap, cataloged under National Stock Number 5310-00-394-6440, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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	5310-00-394-6440
Item Name	Nut,plain,cap
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Width Across Flats	1.690 INCHES NOMINAL IN
Thread Series	UNIFIED NATIONAL COARSE (UNC)
Thread Direction	RIGHT-HAND
Nominal Thread Size	1.000 INCHES IN
Nut Height	3.500 INCHES NOMINAL IN
Nut Style	CAP
Thread Class	3B
Thread Quantity Per Inch	9
Material	COPPER ALLOY OVERALL
Bearing Surface Type	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 9

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

5330-00-580-2547 POSSIBLE MATCH

GASKET

Possible match (shared part number)

2540-00-737-7173 POSSIBLE MATCH

PUMP ASY

Possible match (shared part number)

6515-01-117-56694256 POSSIBLE MATCH

CATHETER AND NEEDLE UNIT,INTRAVE

Possible match (shared part number)Critikon Inc Sub of Johnson and Johnson

5365-01-197-0308425-6 POSSIBLE MATCH

BUSHING

Possible match (shared part number)Manitowoc Engineering Co Division of the Manitowoc Co Inc

4730-01-203-81854-2-5-6 POSSIBLE MATCH

RESTRICTOR,FLUID FLOW

Possible match (shared part number)Emerson Electric Co Alco Controls Div

3040-01-247-56734256 POSSIBLE MATCH

CONNECTING LINK,RIGID

Possible match (shared part number)Pdi Ground Support Systems, Inc.

5985-01-384-18404256 POSSIBLE MATCH

ACCESSORY KIT,ANTENNA

Possible match (shared part number)Shakespeare Company, Llc Div Military Electronics

5120-01-429-635700904256000 POSSIBLE MATCH

ADAPTER,SOCKET WRENCH

Possible match (shared part number)Sears, Roebuck and Co. Dba Sears Div Sears Commercial

3950-01-630-07324256 POSSIBLE MATCH

HOIST,CHAIN

Possible match (shared part number)Columbus Mckinnon Corp

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
SK619807	5/9 Secondary reference U.S. Government activity
4256	3/9 Design control — primary reference U.S. Government activity
N13312PC4256	5/9 Secondary reference U.S. Government activity

Related Parts

5330-00-580-2547POSSIBLE MATCH

GASKET

2540-00-737-7173POSSIBLE MATCH

PUMP ASY

6515-01-117-5669POSSIBLE MATCH

CATHETER AND NEEDLE UNIT,INTRAVE

4256

5365-01-197-0308POSSIBLE MATCH

BUSHING

425-6

4730-01-203-8185POSSIBLE MATCH

RESTRICTOR,FLUID FLOW

4-2-5-6

3040-01-247-5673POSSIBLE MATCH

CONNECTING LINK,RIGID

4256

5985-01-384-1840POSSIBLE MATCH

ACCESSORY KIT,ANTENNA

4256

5120-01-429-6357POSSIBLE MATCH

ADAPTER,SOCKET WRENCH

00904256000

3950-01-630-0732POSSIBLE MATCH

HOIST,CHAIN

4256

Frequently Asked Questions

What is NSN 5310-00-394-6440?

NSN 5310-00-394-6440 is a Nut,plain,cap, classified under FSC 5310, Nuts and Washers. Status: active.

What NSN replaces 5310-00-394-6440?

9 possible matches (shared part number, not a government interchangeability claim): 5330-00-580-2547, 2540-00-737-7173, 6515-01-117-5669. Verify interchangeability with system specifications before substitution.

What are the specifications of 5310-00-394-6440?

Key specifications for 5310-00-394-6440: Width Across Flats: 1.690 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.000 INCHES IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 5310-00-394-6440 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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