ND9901 — BOLT,SQUARE NECK

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

ND9901: BOLT,SQUARE NECK.

The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNK, neck_width: 0.656 INCHES NOMINAL IN, neck_length: 0.500 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 1.062 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-263-3533, 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

ND9901

NSN: 5306-00-263-3533
FSC: 5306 — Bolts
CAGE: K0824 — PEARSON ENGINEERING LIMITED (GBR)

SPECIFICATIONS

material	STEEL OVERALL
head_style	FLAT COUNTERSUNK
neck_width	0.656 INCHES NOMINAL IN
neck_length	0.500 INCHES NOMINAL IN
thread_class	2A A
head_diameter	1.062 INCHES NOMINAL IN
thread_length	1.188 INCHES MINIMUM IN
fastener_length	2.250 INCHES NOMINAL IN
hardness_rating	23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_direction	RIGHT-HAND
countersink_angle	82.0 DEGREES NOMINAL
nominal_thread_diameter	0.625 INCHES IN
NSN	5306-00-263-3533

COMPONENT DIAGRAM

KEY FEATURES

•

NECK LENGTH: 0.500 INCHES NOMINAL IN

•

FASTENER LENGTH: 2.250 INCHES NOMINAL IN

•

THREAD LENGTH: 1.188 INCHES MINIMUM IN

•

HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL

•

NOMINAL THREAD DIAMETER: 0.625 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

NONDEFINITIVE SPEC/STD DATA: 3 TYPE AND 2 CLASS AND C STYLE AND 1 FORM

TECHNICAL CHARACTERISTICS

NECK LENGTH	0.500 INCHES NOMINAL IN
FASTENER LENGTH	2.250 INCHES NOMINAL IN
THREAD LENGTH	1.188 INCHES MINIMUM IN
HARDNESS RATING	23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER	0.625 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
NONDEFINITIVE SPEC/STD DATA	3 TYPE AND 2 CLASS AND C STYLE AND 1 FORM
NECK WIDTH	0.656 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTH	120000 POUNDS PER SQUARE INCH LBS

SUBSTITUTES & CROSS-REFERENCES 4

3F5108Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

ND7275Reference document

Same NSN cross-reference

Reference document — Secondary reference

FFB584Reference document

Same NSN cross-reference

Reference document — Secondary reference

B18.9Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is ND9901?

ND9901 is a BOLT,SQUARE NECK.

What parts can replace ND9901?

There are 4 known substitutes for ND9901: 3F5108, ND7275, FFB584 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for ND9901?

ND9901 is cataloged in the U.S. Government catalog under NSN 5306-00-263-3533. This indicates validated use in U.S. government and defense supply chains.

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