7521779 — RING,EXTERNALLY THREADED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

7521779: RING,EXTERNALLY THREADED.

The RING,EXTERNALLY THREADED is a the manufacturer industrial component. Key specifications include depth: 0.375 INCHES NOMINAL IN, width: 0.406 INCHES NOMINAL IN, material: IRON CAST, bore_shape: STRAIGHT, drive_type: SLOTTED FACE, thread_size: 4.422-12. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-752-1779, 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

7521779

NSN: 5365-00-752-1779
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

depth	0.375 INCHES NOMINAL IN
width	0.406 INCHES NOMINAL IN
material	IRON CAST
bore_shape	STRAIGHT
drive_type	SLOTTED FACE
thread_size	4.422-12
bore_diameter	3.000 INCHES NOMINAL IN
beveled_thread	NOT INCLUDED
overall_length	4.270 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
setscrew_locking_notch	NOT INCLUDED
casehardening_indicator	NOT CASEHARDENED
NSN	5365-00-752-1779

COMPONENT DIAGRAM

KEY FEATURES

•

BORE ANNULAR INTERNAL SERRATION: NOT INCLUDED

•

MATERIAL HARDNESS RATING: 57.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM

•

BEVELED THREAD: NOT INCLUDED

•

DRIVE TYPE: SLOTTED FACE

•

BORE SHAPE: STRAIGHT

•

THREAD DIRECTION: RIGHT-HAND

•

SETSCREW LOCKING NOTCH: NOT INCLUDED

TECHNICAL CHARACTERISTICS

BORE ANNULAR INTERNAL SERRATION	NOT INCLUDED
MATERIAL HARDNESS RATING	57.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM
BEVELED THREAD	NOT INCLUDED
DRIVE TYPE	SLOTTED FACE
OVERALL LENGTH	4.270 INCHES NOMINAL IN
BORE SHAPE	STRAIGHT
THREAD DIRECTION	RIGHT-HAND
SETSCREW LOCKING NOTCH	NOT INCLUDED
ACCOMMODATION TYPE AND QUANTITY	17 SLOTS
CASEHARDENING INDICATOR	NOT CASEHARDENED

OTHER ITEMS IN FSC 5365 — Bushings, Rings, Shims, and Spacers

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

5365-00-000-6078 5365-00-000-7436 5365-00-001-1292 5365-00-001-1365 5365-00-001-1841 5365-00-001-1915 5365-00-001-1916 5365-00-001-1940

SUBSTITUTES & CROSS-REFERENCES 4

2214E57Reference document

Same NSN cross-reference

Reference document — Secondary reference

801E557Reference document

Same NSN cross-reference

Reference document — Secondary reference

5365007521779Reference document

Same NSN cross-reference

Reference document — Informative reference only

2648D5Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

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

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FREQUENTLY ASKED QUESTIONS

What is 7521779?

7521779 is a RING,EXTERNALLY THREADED.

What parts can replace 7521779?

There are 4 known substitutes for 7521779: 2214E57, 801E557, 5365007521779 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 7521779?

7521779 is cataloged in the U.S. Government catalog under NSN 5365-00-752-1779. This indicates validated use in U.S. government and defense supply chains.

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7521779 — RING,EXTERNALLY THREADED

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