491D26 — STUD,SHOULDERED

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

491D26: STUD,SHOULDERED.

The STUD,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740, thread_class: 3A NUT THREAD A, thread_length: 0.560 INCHES NOMINAL NUT THREAD IN, overall_length: 1.510 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES NUT THD, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-600-3420, 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

491D26

NSN: 5307-00-600-3420
FSC: 5307 — Studs
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)

SPECIFICATIONS

material	STEEL COMP 8740
thread_class	3A NUT THREAD A
thread_length	0.560 INCHES NOMINAL NUT THREAD IN
overall_length	1.510 INCHES NOMINAL IN
surface_finish	63.0 MICROINCHES NUT THD
hardness_rating	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
shoulder_length	0.270 INCHES NOMINAL IN
style_designator	SHOULDERED
thread_direction	RIGHT-HAND STUD THREAD
surface_treatment	CADMIUM OVERALL
nominal_thread_size	0.250 INCHES STUD THREAD IN
distance_across_flats	0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
NSN	5307-00-600-3420

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 63.0 MICROINCHES NUT THD

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.560 INCHES NOMINAL STUD THREAD IN

•

HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM

•

STYLE DESIGNATOR: SHOULDERED

TECHNICAL CHARACTERISTICS

SURFACE FINISH	63.0 MICROINCHES NUT THD
SURFACE FINISH	63.0 MICROINCHES STUD THD
SURFACE FINISH	32.0 MICROINCHES WRENCHING FACILITY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.560 INCHES NOMINAL STUD THREAD IN
THREAD LENGTH	0.560 INCHES NOMINAL NUT THREAD IN
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR	SHOULDERED
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH	1.510 INCHES NOMINAL IN

OTHER ITEMS IN FSC 5307 — Studs

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

5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 491D26?

491D26 is a STUD,SHOULDERED.

What is the NSN for 491D26?

491D26 is cataloged in the U.S. Government catalog under NSN 5307-00-600-3420. This indicates validated use in U.S. government and defense supply chains.

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491D26 — STUD,SHOULDERED

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