NAS1291C3M

View detailed technical data, stock status, and sourcing information for: NAS1291C3M
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-894-3638

Item Name Code

29730

Assigment Date

01/01/1962 (64 years ago)

An item having two flat bearing surfaces, conforming to the same shape as the base of a nut (1), plain, plate and nut (1), self-locking, plate. It is used to provide better alignment in assembly.

0.330 inches maximum washer outside diameter, right-hand thread direction, prevailing torque all metal design locking feature, dry film lubricant lubrication, 3b thread class

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Washer Outside Diameter: 0.330 inches maximum
Lubrication: dry film lubricant
Overall Height: 0.154 inches minimum and 0.188 inches maximum
Nut Style: hexagon
Washer Thickness: 0.015 inches minimum
Width Across Flats: 0.243 inches minimum and 0.252 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unf
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.190 inches
Criticality Code Justification: feat
Special Features: fluorescent penetrant inspect
Material: iron alloy 660 overall
Material Document And Classification: ams 5735 assn std single material response overall
Surface Treatment: passivate overall
Test Data Document: "81349-mil-n-25027 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-763-3933	No Name Available	08/05/1968
5310-00-954-6772	No Name Available	10/21/1968
5310-01-155-8466	No Name Available	06/01/1996
5310-01-336-6368	No Name Available	12/01/1992
5310-01-346-3791	No Name Available	09/01/1993

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
03A153-3L	Extended Washer Self-Locking Nut
1772075-1	Extended Washer Self-Locking Nut
193320672	Extended Washer Self-Locking Nut
2636928	Extended Washer Self-Locking Nut
457-5593	Extended Washer Self-Locking Nut
525-595-9105	Extended Washer Self-Locking Nut
5310008943638	Extended Washer Self-Locking Nut
5310PL0190083	Extended Washer Self-Locking Nut
5310PL1858643	Extended Washer Self-Locking Nut
568-4-24347-002	Extended Washer Self-Locking Nut
79800759006	Extended Washer Self-Locking Nut
83963-3L	Extended Washer Self-Locking Nut
947532-0313	Extended Washer Self-Locking Nut
950311-25	Extended Washer Self-Locking Nut
A05495	Extended Washer Self-Locking Nut
AS8650D	Extended Washer Self-Locking Nut
BH1291C-3MFA	Extended Washer Self-Locking Nut
CIPRD-NAS1291C3M	Extended Washer Self-Locking Nut
FN812M1032	Extended Washer Self-Locking Nut
FS10-0802908	Extended Washer Self-Locking Nut
H42-3	Extended Washer Self-Locking Nut
H52766-3	Extended Washer Self-Locking Nut
NAS1291A3M	Extended Washer Self-Locking Nut
NAS1291C3M	Extended Washer Self-Locking Nut
NAS1291C3MW	Extended Washer Self-Locking Nut
NRH30C-3M	Extended Washer Self-Locking Nut
P32333	Extended Washer Self-Locking Nut
P900633	Extended Washer Self-Locking Nut
RMLH3858-02	Extended Washer Self-Locking Nut
VN324DH02	Extended Washer Self-Locking Nut

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-00-894-3638?

The FSCG of the NSN 5310-00-894-3638 is 5310

Does the NSN 5310-00-894-3638 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-894-3638 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5310-00-894-3638 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-894-3638 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5310-00-894-3638 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962