3261691 — NUT,PLAIN,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

3261691: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303SE OVERALL, nut_style: HEXAGON, nut_height: 0.328 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNS, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-274-9779, 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

3261691

NSN: 5310-00-274-9779
FSC: 5310 — Nuts and Washers
CAGE: 55380 — HATCH & KIRK, INC. (USA)

SPECIFICATIONS

material	STEEL COMP 303SE OVERALL
nut_style	HEXAGON
nut_height	0.328 INCHES NOMINAL IN
thread_class	2B
thread_series	UNS
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
width_across_flats	0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_size	0.375 INCHES IN
bearing_surface_type	CHAMFERED OR WASHER FACED
thread_quantity_per_inch	24
material_document_and_classification	QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN	5310-00-274-9779

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN

•

THREAD SERIES: UNS

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.375 INCHES IN

•

NUT HEIGHT: 0.328 INCHES NOMINAL IN

•

SURFACE TREATMENT: PASSIVATE OVERALL

•

NUT STYLE: HEXAGON

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
THREAD SERIES	UNS
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.375 INCHES IN
NUT HEIGHT	0.328 INCHES NOMINAL IN
SURFACE TREATMENT	PASSIVATE OVERALL
NUT STYLE	HEXAGON
THREAD CLASS	2B
THREAD QUANTITY PER INCH	24

SUBSTITUTES & CROSS-REFERENCES 3

201102Reference document

Same NSN cross-reference

Reference document — Secondary reference

MILB857TYPE3STYLEAReference document

Same NSN cross-reference

Reference document — Identification reference

MILB857TYPE3STYLEBReference document

Same NSN cross-reference

Reference document — Identification reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 3261691?

3261691 is a NUT,PLAIN,HEXAGON.

What parts can replace 3261691?

There are 3 known substitutes for 3261691: 201102, MILB857TYPE3STYLEA, MILB857TYPE3STYLEB. Substitute compatibility should be verified for your specific system.

What is the NSN for 3261691?

3261691 is cataloged in the U.S. Government catalog under NSN 5310-00-274-9779. This indicates validated use in U.S. government and defense supply chains.

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