289E621PC27 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

289E621PC27: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL UNS K03104 OVERALL, head_style: KNURLED NO. 1, head_height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-386-8143, 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

289E621PC27

NSN: 5305-01-386-8143
FSC: 5305 — Screws
CAGE: 04241 — FLUOR MARINE PROPULSION, LLC DBA KNOLLS ATOMIC POWER LABORATORY (USA)

SPECIFICATIONS

material	STEEL UNS K03104 OVERALL
head_style	KNURLED NO. 1
head_height	0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
thread_class	3A A
head_diameter	0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length	0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
fastener_length	0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
hardness_rating	38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM THREADS
thread_direction	RIGHT-HAND
width_across_flats	0.141 INCHES NOMINAL IN
internal_drive_style	HEXAGON
nominal_thread_diameter	0.164 INCHES IN
NSN	5305-01-386-8143

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.141 INCHES NOMINAL IN

•

HEAD HEIGHT: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN

•

HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM THREADS

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.164 INCHES IN

•

HEAD STYLE: KNURLED NO. 1

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.141 INCHES NOMINAL IN
HEAD HEIGHT	0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
FASTENER LENGTH	0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD LENGTH	0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
HARDNESS RATING	38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.164 INCHES IN
HEAD STYLE	KNURLED NO. 1
THREAD DIRECTION	RIGHT-HAND
MINIMUM TENSILE STRENGTH	190000 POUNDS PER SQUARE INCH LBS

OTHER ITEMS IN FSC 5305 — Screws

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

5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753

SUBSTITUTES & CROSS-REFERENCES 1

20097-98C-8Reference 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 289E621PC27?

289E621PC27 is a SCREW,CAP,SOCKET HEAD.

What parts can replace 289E621PC27?

There is 1 known substitute for 289E621PC27: 20097-98C-8. Substitute compatibility should be verified for your specific system.

What is the NSN for 289E621PC27?

289E621PC27 is cataloged in the U.S. Government catalog under NSN 5305-01-386-8143. This indicates validated use in U.S. government and defense supply chains.

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