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999F0937 FN 52L1 — STUD,CONTINUOUS THREAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

999F0937 FN 52L1: STUD,CONTINUOUS THREAD.

The STUD,CONTINUOUS THREAD is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, thread_class: 2A LOCATION NOT OTHERWISE SPECIFIED A, overall_length: 8.000 INCHES NOMINAL IN, thread_direction: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED, nominal_thread_size: 1.375 INCHES LOCATION NOT OTHERWISE SPECIFIED IN, thread_quantity_per_inch: 6 LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-166-7136, 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
999F0937 FN 52L1
NSN: 5307-01-166-7136
FSC: 5307 — Studs
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialNICKEL ALLOY
thread_class2A LOCATION NOT OTHERWISE SPECIFIED A
overall_length8.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
nominal_thread_size1.375 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
thread_quantity_per_inch6 LOCATION NOT OTHERWISE SPECIFIED
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
criticality_code_justificationZZZX
departure_from_cited_designatorMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
material_document_and_classificationQQ-N-286 CL A FED SPEC SINGLE MATERIAL RESPONSE
NSN5307-01-166-7136
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 999F0937 FN 52L1 · 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: ZZZX
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286 CL A FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
NOMINAL THREAD SIZE: 1.375 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
•
DEPARTURE FROM CITED DESIGNATOR: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
•
THREAD CLASS: 2A LOCATION NOT OTHERWISE SPECIFIED A
•
THREAD QUANTITY PER INCH: 6 LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZX
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 CL A FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH8.000 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
NOMINAL THREAD SIZE1.375 INCHES LOCATION NOT OTHERWISE SPECIFIED IN
DEPARTURE FROM CITED DESIGNATORMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
THREAD CLASS2A LOCATION NOT OTHERWISE SPECIFIED A
THREAD QUANTITY PER INCH6 LOCATION NOT OTHERWISE SPECIFIED
MATERIALNICKEL ALLOY
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED
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 10
999F0937 FN 52Reference document
Same NSN cross-reference
Reference document — Secondary reference
TYPE I, STYLE CL1Reference document
Same NSN cross-reference
Reference document — Secondary reference
1 3/8-6UNC-3A-3AX 8(T3 1/4B2 1L1Reference document
Same NSN cross-reference
Reference document — Secondary reference
PL-999F0937 FN 52L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PL-999R0501-C FIND 52Reference document
Same NSN cross-reference
Reference document — Secondary reference
PL-999R0501 FIND 52Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 999F0937 FN 52L1?
999F0937 FN 52L1 is a STUD,CONTINUOUS THREAD.
What parts can replace 999F0937 FN 52L1?
There are 10 known substitutes for 999F0937 FN 52L1: 999F0937 FN 52, TYPE I, STYLE CL1, 1 3/8-6UNC-3A-3AX 8(T3 1/4B2 1L1 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 999F0937 FN 52L1?
999F0937 FN 52L1 is cataloged in the U.S. Government catalog under NSN 5307-01-166-7136. 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.