R44888 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

R44888: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN, thread_class: 2A A, fastener_length: 3.750 INCHES NOMINAL IN, locking_feature: STRIP THREADS, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-326-9487, 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

R44888

NSN: 5306-01-326-9487
FSC: 5306 — Bolts
CAGE: 75755 — DEERE & COMPANY DBA DEERE JOHN CO (USA)

SPECIFICATIONS

head_style	HEXAGON
head_height	0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
thread_class	2A A
fastener_length	3.750 INCHES NOMINAL IN
locking_feature	STRIP THREADS
thread_direction	RIGHT-HAND
width_between_flats	0.493 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
nominal_thread_diameter	0.500 INCHES IN
first_diameter_from_head	0.500 INCHES NOMINAL IN
thread_quantity_per_inch	13
thread_series_designator	UNIFIED NATIONAL COARSE (UNC)
externally_relieved_body_diameter_quantity	1
NSN	5306-01-326-9487

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN

•

FASTENER LENGTH: 3.750 INCHES NOMINAL IN

•

FIRST DIAMETER FROM HEAD: 0.500 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.500 INCHES IN

•

HEAD STYLE: HEXAGON

•

THREAD DIRECTION: RIGHT-HAND

•

WIDTH BETWEEN FLATS: 0.493 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN

•

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.250 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
FASTENER LENGTH	3.750 INCHES NOMINAL IN
FIRST DIAMETER FROM HEAD	0.500 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.500 INCHES IN
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.493 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.250 INCHES NOMINAL IN
LOCKING FEATURE	STRIP THREADS
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1

OTHER ITEMS IN FSC 5306 — Bolts

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

5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017

SUBSTITUTES & CROSS-REFERENCES 2

19930512Reference document

Same NSN cross-reference

Reference document — Secondary reference

R115439Reference 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 R44888?

R44888 is a BOLT,EXTERNALLY RELIEVED BODY.

What parts can replace R44888?

There are 2 known substitutes for R44888: 19930512, R115439. Substitute compatibility should be verified for your specific system.

What is the NSN for R44888?

R44888 is cataloged in the U.S. Government catalog under NSN 5306-01-326-9487. This indicates validated use in U.S. government and defense supply chains.

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