401879H — STUD,PLAIN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

401879H: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8640 OR STEEL COMP 8740 OR STEEL COMP 4140, thread_class: 3A NUT THREAD A, thread_length: 0.690 INCHES MINIMUM NUT THREAD IN, overall_length: 1.880 INCHES NOMINAL IN, surface_finish: 32.0 MICROINCHES NUT THD, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-776-7342, 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

401879H

NSN: 5307-00-776-7342
FSC: 5307 — Studs
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)

SPECIFICATIONS

material	STEEL COMP 8640 OR STEEL COMP 8740 OR STEEL COMP 4140
thread_class	3A NUT THREAD A
thread_length	0.690 INCHES MINIMUM NUT THREAD IN
overall_length	1.880 INCHES NOMINAL IN
surface_finish	32.0 MICROINCHES NUT THD
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	0.438 INCHES STUD THREAD IN
thread_pitch_diameters	+0.3989 TO 0.4004 INCHES STUD THREAD IN
thread_quantity_per_inch	20 NUT THREAD
thread_series_designator	UNF NUT THREAD
NSN	5307-00-776-7342

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES NUT THD

•

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

•

THREAD LENGTH: 0.940 INCHES MINIMUM STUD THREAD IN

•

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

•

THREAD PITCH DIAMETERS: +0.3989 TO 0.4004 INCHES STUD THREAD IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC ALL MATERIAL RESPONSES

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES NUT THD
SURFACE FINISH	32.0 MICROINCHES STUD THD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.940 INCHES MINIMUM STUD THREAD IN
THREAD LENGTH	0.690 INCHES MINIMUM NUT THREAD IN
HARDNESS RATING	28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS	+0.3989 TO 0.4004 INCHES STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-624 FED SPEC ALL MATERIAL RESPONSES
OVERALL LENGTH	1.880 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND STUD THREAD

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 401879H?

401879H is a STUD,PLAIN.

What is the NSN for 401879H?

401879H is cataloged in the U.S. Government catalog under NSN 5307-00-776-7342. This indicates validated use in U.S. government and defense supply chains.

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401879H — STUD,PLAIN

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