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6537775-31 — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6537775-31: STUD,PLAIN.

The STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY K-500, thread_class: 3A STUD THREAD A, overall_length: 8.250 INCHES NOMINAL IN, thread_direction: RIGHT-HAND STUD THREAD, nominal_thread_size: 1.500 INCHES STUD THREAD IN, end_item_identification: HULL FITTING ASSY PERISCOPE SYS. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-325-5377, 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
6537775-31
NSN: 5307-01-325-5377
FSC: 5307 — Studs
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY K-500
thread_class3A STUD THREAD A
overall_length8.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size1.500 INCHES STUD THREAD IN
end_item_identificationHULL FITTING ASSY PERISCOPE SYS
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
criticality_code_justificationZZZY
material_document_and_classificationQQ-N-286 CL A FED SPEC SINGLE MATERIAL RESPONSE
reference_number_differentiating_characteristicsMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
NSN5307-01-325-5377
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6537775-31 · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286 CL A FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 1.500 INCHES STUD THREAD IN
•
THREAD CLASS: 3A STUD THREAD A
•
MATERIAL: NICKEL ALLOY K-500
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 CL A FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH8.250 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
NOMINAL THREAD SIZE1.500 INCHES STUD THREAD IN
THREAD CLASS3A STUD THREAD A
END ITEM IDENTIFICATIONHULL FITTING ASSY PERISCOPE SYS
MATERIALNICKEL ALLOY K-500
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) STUD THREAD
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
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 9
1222TYIV11/26UNC-3AX8 1/4GR500L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6537775 ITEM 31Reference document
Same NSN cross-reference
Reference document — Secondary reference
6537775 ITEM 31L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1222TYIV1 1/26UNC-3AX8 1/4 GR500Reference document
Same NSN cross-reference
Reference document — Secondary reference
A8831227L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
400 6640205 REV-ITEM31Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6537775-31?
6537775-31 is a STUD,PLAIN.
What parts can replace 6537775-31?
There are 9 known substitutes for 6537775-31: 1222TYIV11/26UNC-3AX8 1/4GR500L1, 6537775 ITEM 31, 6537775 ITEM 31L1 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6537775-31?
6537775-31 is cataloged in the U.S. Government catalog under NSN 5307-01-325-5377. This indicates validated use in U.S. government and defense supply chains.
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