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TR28055 — STUD,STEPPED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

TR28055: STUD,STEPPED.

The STUD,STEPPED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, thread_class: 3A STUD THREAD A, thread_length: 0.203 INCHES MINIMUM AND 0.223 INCHES MAXIMUM NUT THREAD IN, overall_length: 1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM IN, shank_diameter: 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, special_features: STUD HAS A KEYWAY. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-629-7049, 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
TR28055
NSN: 5307-01-629-7049
FSC: 5307 — Studs
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thread_class3A STUD THREAD A
thread_length0.203 INCHES MINIMUM AND 0.223 INCHES MAXIMUM NUT THREAD IN
overall_length1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM IN
shank_diameter0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
special_featuresSTUD HAS A KEYWAY
style_designatorSTEPPED
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.312 INCHES NUT THREAD IN
thread_quantity_per_inch18 NUT THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) NUT THREAD
material_document_and_classificationAMS5737,A236 ASSN STD SINGLE MATERIAL RESPONSE
NSN5307-01-629-7049
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: TR28055 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHANK DIAMETER: 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.203 INCHES MINIMUM AND 0.223 INCHES MAXIMUM NUT THREAD IN
•
STYLE DESIGNATOR: STEPPED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5737,A236 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.312 INCHES NUT THREAD IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
THREAD LENGTH0.203 INCHES MINIMUM AND 0.223 INCHES MAXIMUM NUT THREAD IN
STYLE DESIGNATORSTEPPED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5737,A236 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.312 INCHES NUT THREAD IN
NOMINAL THREAD SIZE0.190 INCHES STUD THREAD IN
SPECIAL FEATURESSTUD HAS A KEYWAY
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TR28055?
TR28055 is a STUD,STEPPED.
What is the NSN for TR28055?
TR28055 is cataloged in the U.S. Government catalog under NSN 5307-01-629-7049. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.