TR28028-12 — STUD,LOCKED IN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

TR28028-12: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718, thread_class: 3A STUD THREAD A, thread_length: 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM NUT THREAD IN, overall_length: 0.960 INCHES NOMINAL IN, locking_feature: KEY INSERTS, style_designator: LOCKED IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-486-0101, 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

TR28028-12

NSN: 5307-01-486-0101
FSC: 5307 — Studs
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)

SPECIFICATIONS

material	NICKEL ALLOY 718
thread_class	3A STUD THREAD A
thread_length	0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM NUT THREAD IN
overall_length	0.960 INCHES NOMINAL IN
locking_feature	KEY INSERTS
style_designator	LOCKED IN
thread_direction	RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
nominal_thread_size	0.250 INCHES STUD THREAD IN
end_item_identification	F-119 ENGINE
thread_quantity_per_inch	24 STUD THREAD
thread_series_designator	UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD
furnished_items_and_quantity	2 SELF BROACHING LOCKING KEES
NSN	5307-01-486-0101

COMPONENT DIAGRAM

KEY FEATURES

•

DISTANCE FROM SERRATED PORTION TO NUT END: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM STUD THREAD IN

•

STYLE DESIGNATOR: LOCKED IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5662 ASSN STD SINGLE MATERIAL RESPONSE

•

THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED

•

NOMINAL THREAD SIZE: 0.250 INCHES STUD THREAD IN

TECHNICAL CHARACTERISTICS

DISTANCE FROM SERRATED PORTION TO NUT END	0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
THREAD LENGTH	0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM STUD THREAD IN
THREAD LENGTH	0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM NUT THREAD IN
STYLE DESIGNATOR	LOCKED IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5662 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH	0.960 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
NOMINAL THREAD SIZE	0.250 INCHES STUD THREAD IN
DISTANCE FROM SERRATED PORTION TO STUD END	0.750 INCHES NOMINAL IN
LOCKING FEATURE	KEY INSERTS

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 4

ST2951-12Reference document

Same NSN cross-reference

Reference document — Secondary reference

ST2952-12Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

ST2953-12Reference document

Same NSN cross-reference

Reference document — Secondary reference

KNS10088-4-12Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is TR28028-12?

TR28028-12 is a STUD,LOCKED IN.

What parts can replace TR28028-12?

There are 4 known substitutes for TR28028-12: ST2951-12, ST2952-12, ST2953-12 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for TR28028-12?

TR28028-12 is cataloged in the U.S. Government catalog under NSN 5307-01-486-0101. This indicates validated use in U.S. government and defense supply chains.

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