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10446-C-18L1 — STUD,PLAIN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

10446-C-18L1: 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: 2.500 INCHES NOMINAL IN, nominal_thread_size: 0.620 INCHES STUD THREAD IN, thread_quantity_per_inch: 11 STUD THREAD, thread_series_designator: UNIFIED NATIONAL COARSE (UNC) STUD THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-245-0780, 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
10446-C-18L1
NSN: 5307-01-245-0780
FSC: 5307 — Studs
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialNICKEL ALLOY K-500
thread_class3A STUD THREAD A
overall_length2.500 INCHES NOMINAL IN
nominal_thread_size0.620 INCHES STUD THREAD IN
thread_quantity_per_inch11 STUD THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) STUD THREAD
criticality_code_justificationZZZY
material_document_and_classificationQQ-N-286,CLASS A HF-A-AH FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-286,CLASS A CD-A-AH FED SPEC 2ND MATERIAL RESPONSE
reference_number_differentiating_characteristicsMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
NSN5307-01-245-0780
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 10446-C-18L1 · 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,CLASS A HF-A-AH FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-286,CLASS A CD-A-AH FED SPEC 2ND MATERIAL RESPONSE
•
NOMINAL THREAD SIZE: 0.620 INCHES STUD THREAD IN
•
THREAD CLASS: 3A STUD THREAD A
•
THREAD QUANTITY PER INCH: 11 STUD THREAD
•
MATERIAL: NICKEL ALLOY K-500
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) STUD THREAD
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286,CLASS A HF-A-AH FED SPEC 1ST MATERIAL RESPONSE OR QQ-N-286,CLASS A CD-A-AH FED SPEC 2ND MATERIAL RESPONSE
OVERALL LENGTH2.500 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.620 INCHES STUD THREAD IN
THREAD CLASS3A STUD THREAD A
THREAD QUANTITY PER INCH11 STUD THREAD
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 7
11156-H-18 ITEM 178AReference document
Same NSN cross-reference
Reference document — Secondary reference
10446-C-18Reference document
Same NSN cross-reference
Reference document — Secondary reference
PL-11156-F-18 ITEM 178AL1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
Y-062D178X48Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
11156-H-18 ITEM 178AL1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PL-11156-F-18 ITEM 178AReference 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 10446-C-18L1?
10446-C-18L1 is a STUD,PLAIN.
What parts can replace 10446-C-18L1?
There are 7 known substitutes for 10446-C-18L1: 11156-H-18 ITEM 178A, 10446-C-18, PL-11156-F-18 ITEM 178AL1 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10446-C-18L1?
10446-C-18L1 is cataloged in the U.S. Government catalog under NSN 5307-01-245-0780. 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.