3M261-4-8 — BOLT,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

3M261-4-8: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DOUBLE HEXAGON, grip_length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, head_height: 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.397 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-482-2632, 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

3M261-4-8

NSN: 5306-00-482-2632
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	DOUBLE HEXAGON
grip_length	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
head_height	0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
thread_class	3A A
thread_length	0.397 INCHES NOMINAL IN
fastener_length	0.881 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
features_provided	UNFINISHED HEAD
surface_treatment	CADMIUM OVERALL
width_between_flats	0.491 INCHES MINIMUM IN
nominal_thread_diameter	0.250 INCHES IN
NSN	5306-00-482-2632

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.881 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MAC PS13145,MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.397 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: 76301-23-105 TYPE 1 A MFR REF SINGLE MATERIAL RESPONSE OVERALL A

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

FEATURES PROVIDED: UNFINISHED HEAD

•

HEAD STYLE: DOUBLE HEXAGON

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
FASTENER LENGTH	0.881 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MAC PS13145,MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.397 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	76301-23-105 TYPE 1 A MFR REF SINGLE MATERIAL RESPONSE OVERALL A
NOMINAL THREAD DIAMETER	0.250 INCHES IN
FEATURES PROVIDED	UNFINISHED HEAD
HEAD STYLE	DOUBLE HEXAGON
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN

OTHER ITEMS IN FSC 5306 — Bolts

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459

SUBSTITUTES & CROSS-REFERENCES 1

AIC261M4-8Reference document

Same NSN cross-reference

Reference document — Secondary 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 3M261-4-8?

3M261-4-8 is a BOLT,MACHINE.

What parts can replace 3M261-4-8?

There is 1 known substitute for 3M261-4-8: AIC261M4-8. Substitute compatibility should be verified for your specific system.

What is the NSN for 3M261-4-8?

3M261-4-8 is cataloged in the U.S. Government catalog under NSN 5306-00-482-2632. This indicates validated use in U.S. government and defense supply chains.

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