401809S — STUD,PLAIN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

401809S: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740, thread_class: 3A NUT THREAD A, thread_length: 0.680 INCHES MINIMUM STUD THREAD IN, overall_length: 1.380 INCHES NOMINAL IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND NUT THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-026-8491, 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

401809S

NSN: 5307-00-026-8491
FSC: 5307 — Studs
CAGE: 28839 — TELEDYNE INDUSTRIES INC TELEDYNE POWER SYSTEMS DIV (USA)

SPECIFICATIONS

material	STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740
thread_class	3A NUT THREAD A
thread_length	0.680 INCHES MINIMUM STUD THREAD IN
overall_length	1.380 INCHES NOMINAL IN
hardness_rating	28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
thread_direction	RIGHT-HAND NUT THREAD
surface_treatment	CADMIUM OVERALL
nominal_thread_size	0.312 INCHES NUT THREAD IN
thread_pitch_diameters	+0.2894 TO 0.2909 INCHES STUD THREAD IN
thread_quantity_per_inch	18 STUD THREAD
thread_series_designator	UNF NUT THREAD
material_document_and_classification	QQ0S-624 FED SPEC SINGLE MATERIAL RESPONSE
NSN	5307-00-026-8491

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.680 INCHES MINIMUM STUD THREAD IN

•

HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM

•

THREAD PITCH DIAMETERS: +0.2894 TO 0.2909 INCHES STUD THREAD IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ0S-624 FED SPEC SINGLE MATERIAL RESPONSE

•

THREAD DIRECTION: RIGHT-HAND STUD THREAD

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.680 INCHES MINIMUM STUD THREAD IN
THREAD LENGTH	0.500 INCHES MINIMUM NUT THREAD IN
HARDNESS RATING	28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS	+0.2894 TO 0.2909 INCHES STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ0S-624 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH	1.380 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND STUD THREAD
THREAD DIRECTION	RIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE	0.312 INCHES NUT THREAD IN

SUBSTITUTES & CROSS-REFERENCES 2

7348663Reference document

Same NSN cross-reference

Reference document — Secondary reference

401809P007Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 401809S?

401809S is a STUD,PLAIN.

What parts can replace 401809S?

There are 2 known substitutes for 401809S: 7348663, 401809P007. Substitute compatibility should be verified for your specific system.

What is the NSN for 401809S?

401809S is cataloged in the U.S. Government catalog under NSN 5307-00-026-8491. This indicates validated use in U.S. government and defense supply chains.

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