16990-4F-7D — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

16990-4F-7D: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.480 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN, thread_length: 0.190 INCHES MINIMUM AND 0.292 INCHES MAXIMUM IN, fastener_length: 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-152-0637, 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

16990-4F-7D

NSN: 5305-00-152-0637
FSC: 5305 — Screws
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	FLAT COUNTERSUNK
thread_class	3A A
head_diameter	0.480 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
thread_length	0.190 INCHES MINIMUM AND 0.292 INCHES MAXIMUM IN
fastener_length	0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
hardness_rating	36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
thread_direction	RIGHT-HAND
countersink_angle	80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
surface_treatment	CADMIUM AND CHROMATE OVERALL
width_across_flats	0.156 INCHES NOMINAL IN
internal_drive_style	HEXAGON
NSN	5305-00-152-0637

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.156 INCHES NOMINAL IN

•

FASTENER LENGTH: 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL

•

THREAD LENGTH: 0.190 INCHES MINIMUM AND 0.292 INCHES MAXIMUM IN

•

HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL

•

MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.156 INCHES NOMINAL IN
FASTENER LENGTH	0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH	0.190 INCHES MINIMUM AND 0.292 INCHES MAXIMUM IN
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
NONDEFINITIVE SPEC/STD DATA	4 TYPE

OTHER ITEMS IN FSC 5305 — Screws

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

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES 1

FFS86Reference document

Same NSN cross-reference

Reference document — Identification 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 16990-4F-7D?

16990-4F-7D is a SCREW,CAP,SOCKET HEAD.

What parts can replace 16990-4F-7D?

There is 1 known substitute for 16990-4F-7D: FFS86. Substitute compatibility should be verified for your specific system.

What is the NSN for 16990-4F-7D?

16990-4F-7D is cataloged in the U.S. Government catalog under NSN 5305-00-152-0637. This indicates validated use in U.S. government and defense supply chains.

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16990-4F-7D — SCREW,CAP,SOCKET HEAD

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