21 SWX — NUT,PLAIN,CLINCH

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

21 SWX: NUT,PLAIN,CLINCH.

The NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1137 OVERALL, nut_style: CLINCH, nut_height: 0.292 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, nut_diameter: 0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, pilot_length: 0.120 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-196-2391, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

21 SWX

NSN: 5310-01-196-2391
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	STEEL COMP 1137 OVERALL
nut_style	CLINCH
nut_height	0.292 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
temp_rating	250.0 FAHRENHEIT NOMINAL DEGF
nut_diameter	0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
pilot_length	0.120 INCHES MAXIMUM IN
thread_class	2B
thread_series	UNIFIED NATIONAL COARSE (UNC)
pilot_diameter	0.342 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OVERALL
nominal_thread_size	0.250 INCHES IN
NSN	5310-01-196-2391

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF

•

MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.250 INCHES IN

•

NUT DIAMETER: 0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN

•

PILOT DIAMETER: 0.342 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
TEMP RATING	250.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.250 INCHES IN
NUT DIAMETER	0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
PILOT DIAMETER	0.342 INCHES MAXIMUM IN
PILOT LENGTH	0.120 INCHES MAXIMUM IN
NUT HEIGHT	0.292 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN

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 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540

SUBSTITUTES & CROSS-REFERENCES 3

13211E3895-8 GRIP .120-.125Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

13211E3895-8Reference document

Same NSN cross-reference

Reference document — Secondary reference

21SWX-420-6Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 21 SWX?

21 SWX is a NUT,PLAIN,CLINCH.

What parts can replace 21 SWX?

There are 3 known substitutes for 21 SWX: 13211E3895-8 GRIP .120-.125, 13211E3895-8, 21SWX-420-6. Substitute compatibility should be verified for your specific system.

What is the NSN for 21 SWX?

21 SWX is cataloged in the U.S. Government catalog under NSN 5310-01-196-2391. This indicates validated use in U.S. government and defense supply chains.

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