KNB428JDFL — INSERT,SCREW THREAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

KNB428JDFL: INSERT,SCREW THREAD.

The INSERT,SCREW THREAD is a the manufacturer industrial component. Key specifications include length: 0.620 INCHES NOMINAL IN, insert_size: 0.375-16 UNC 2A A, thread_class: 3B, style_designator: KEYLOCK, surface_treatment: PASSIVATE OVERALL, nominal_thread_size: 0.250 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-057-4078, 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

KNB428JDFL

NSN: 5325-01-057-4078
FSC: 5325 — Fastening Devices
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)

SPECIFICATIONS

length	0.620 INCHES NOMINAL IN
insert_size	0.375-16 UNC 2A A
thread_class	3B
style_designator	KEYLOCK
surface_treatment	PASSIVATE OVERALL
nominal_thread_size	0.250 INCHES IN
thread_quantity_per_inch	28
thread_series_designator	UNF
full_internal_thread_length	0.550 INCHES NOMINAL IN
internal_thread_relief_depth	0.070 INCHES NOMINAL IN
surface_treatment_document_and_classification	MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN	5325-01-057-4078

COMPONENT DIAGRAM

KEY FEATURES

•

LENGTH: 0.620 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

INSERT SIZE: 0.375-16 UNC 2A A

•

STYLE DESIGNATOR: KEYLOCK

•

INTERNAL THREAD RELIEF DEPTH: 0.070 INCHES NOMINAL IN

•

NOMINAL THREAD SIZE: 0.250 INCHES IN

•

FULL INTERNAL THREAD LENGTH: 0.550 INCHES NOMINAL IN

•

SURFACE TREATMENT: PASSIVATE OVERALL

TECHNICAL CHARACTERISTICS

LENGTH	0.620 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
INSERT SIZE	0.375-16 UNC 2A A
STYLE DESIGNATOR	KEYLOCK
INTERNAL THREAD RELIEF DEPTH	0.070 INCHES NOMINAL IN
NOMINAL THREAD SIZE	0.250 INCHES IN
FULL INTERNAL THREAD LENGTH	0.550 INCHES NOMINAL IN
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	3B
THREAD QUANTITY PER INCH	28

OTHER ITEMS IN FSC 5325 — Fastening Devices

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

5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317

SUBSTITUTES & CROSS-REFERENCES 2

KNB428DFLReference document

Same NSN cross-reference

Reference document — Secondary reference

G480003-8Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is KNB428JDFL?

KNB428JDFL is a INSERT,SCREW THREAD.

What parts can replace KNB428JDFL?

There are 2 known substitutes for KNB428JDFL: KNB428DFL, G480003-8. Substitute compatibility should be verified for your specific system.

What is the NSN for KNB428JDFL?

KNB428JDFL is cataloged in the U.S. Government catalog under NSN 5325-01-057-4078. This indicates validated use in U.S. government and defense supply chains.

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