HK52207P7 — NUT,SELF-LOCKING,SINGLE BALL SEA

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

HK52207P7: NUT,SELF-LOCKING,SINGLE BALL SEA.

NUT,SELF-LOCKING,SINGLE BALL SEA. Key specifications include material: STEEL COMP 8740 OR STEEL COMP E4340 OR STEEL COMP 4037 OVERALL, nut_style: SINGLE BALL SEAT, HEXAGON, nut_height: 0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-322-7330, 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

HK52207P7

NSN: 5310-01-322-7330
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)

SPECIFICATIONS

material	STEEL COMP 8740 OR STEEL COMP E4340 OR STEEL COMP 4037 OVERALL
nut_style	SINGLE BALL SEAT, HEXAGON
nut_height	0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
lubrication	DRY FILM LUBRICANT
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
hardness_rating	38.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
ball_seat_radius	0.496 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM AND CHROMATE OVERALL
width_across_flats	0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
NSN	5310-01-322-7330

COMPONENT DIAGRAM

KEY FEATURES

•

LUBRICATION: DRY FILM LUBRICANT

•

WIDTH ACROSS FLATS: 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8695 MIL SPEC 3RD MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.438 INCHES IN

TECHNICAL CHARACTERISTICS

LUBRICATION	DRY FILM LUBRICANT
WIDTH ACROSS FLATS	0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
HARDNESS RATING	38.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8695 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.438 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT	0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN

OTHER ITEMS IN FSC 5310 — Nuts and Washers

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

5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540

SUBSTITUTES & CROSS-REFERENCES 1

H52207P7Reference 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 HK52207P7?

HK52207P7 is a NUT,SELF-LOCKING,SINGLE BALL SEA.

What parts can replace HK52207P7?

There is 1 known substitute for HK52207P7: H52207P7. Substitute compatibility should be verified for your specific system.

What is the NSN for HK52207P7?

HK52207P7 is cataloged in the U.S. Government catalog under NSN 5310-01-322-7330. This indicates validated use in U.S. government and defense supply chains.

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HK52207P7 — NUT,SELF-LOCKING,SINGLE BALL SEA

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