18091B-S-0440 — NUT,PLAIN,SPLINE

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

18091B-S-0440: NUT,PLAIN,SPLINE.

The NUT,PLAIN,SPLINE is a the manufacturer industrial component. Key specifications include nut_style: SPLINE, nut_height: 0.085 INCHES NOMINAL IN, nut_diameter: 0.216 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN, pilot_length: 0.025 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-281-5644, 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

18091B-S-0440

NSN: 5310-01-281-5644
FSC: 5310 — Nuts and Washers
CAGE: 1YGB8 — CAREY MANUFACTURING CO, INC DBA AMATOM ELECTRONIC HARDWARE DIV AMATOM ELECTRONIC HARDWARE (USA)

SPECIFICATIONS

nut_style	SPLINE
nut_height	0.085 INCHES NOMINAL IN
nut_diameter	0.216 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
pilot_length	0.025 INCHES NOMINAL IN
thread_class	2B
thread_series	UNIFIED NATIONAL COARSE (UNC)
pilot_diameter	0.177 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	ZINC AND CHROMATE OVERALL
nominal_thread_size	0.112 INCHES IN
thread_quantity_per_inch	40
material_document_and_classification	ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN	5310-01-281-5644

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633,TYPE 3,CL FE/ZN 25 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.112 INCHES IN

•

NUT DIAMETER: 0.216 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN

•

PILOT DIAMETER: 0.177 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN

•

PILOT LENGTH: 0.025 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633,TYPE 3,CL FE/ZN 25 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.112 INCHES IN
NUT DIAMETER	0.216 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
PILOT DIAMETER	0.177 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
PILOT LENGTH	0.025 INCHES NOMINAL IN
NUT HEIGHT	0.085 INCHES NOMINAL IN
SURFACE TREATMENT	ZINC AND CHROMATE OVERALL

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 1

6289041Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

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 18091B-S-0440?

18091B-S-0440 is a NUT,PLAIN,SPLINE.

What parts can replace 18091B-S-0440?

There is 1 known substitute for 18091B-S-0440: 6289041. Substitute compatibility should be verified for your specific system.

What is the NSN for 18091B-S-0440?

18091B-S-0440 is cataloged in the U.S. Government catalog under NSN 5310-01-281-5644. This indicates validated use in U.S. government and defense supply chains.

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