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PartsTable / COMPONENT / 58A122C744-1
58A122C744-1 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.244 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN, material: STEEL OVERALL, drive_type: SLOTTED, eyelet_length: 0.322 INCHES NOMINAL IN, surface_treatment: CADMIUM AND CHROMATE OVERALL, stud_assembly_style: STUD ASSEMBLY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-641-0377, 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
58A122C744-1
NSN: 5325-00-641-0377
FSC: 5325
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
diameter0.244 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
materialSTEEL OVERALL
drive_typeSLOTTED
eyelet_length0.322 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
stud_assembly_styleSTUD ASSEMBLY
eyelet_outside_diameter0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
turnlock_stud_head_styleFLAT COUNTERSUNK
material_accommodated_thickness0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-+-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
distance_from_engaging_member_to_largest_bearing_surface_of_head0.581 INCHES MINIMUM AND 0.591 INCHES MAXIMUM IN
NSN5325-00-641-0377
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 58A122C744-1 · 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
•
MATERIAL ACCOMMODATED THICKNESS: 0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN
•
DRIVE TYPE: SLOTTED
•
TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK
•
EYELET LENGTH: 0.322 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-+-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
DIAMETER: 0.244 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
•
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD: 0.581 INCHES MINIMUM AND 0.591 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL ACCOMMODATED THICKNESS0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN
DRIVE TYPESLOTTED
TURNLOCK STUD HEAD STYLEFLAT COUNTERSUNK
EYELET LENGTH0.322 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-+-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
DIAMETER0.244 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD0.581 INCHES MINIMUM AND 0.591 INCHES MAXIMUM IN
STUD ASSEMBLY STYLESTUD ASSEMBLY
EYELET OUTSIDE DIAMETER0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
27005Interchangeable
interchangeable cross-reference
interchangeable
A27005Interchangeable
interchangeable cross-reference
interchangeable
17743Interchangeable
interchangeable cross-reference
interchangeable
04517Interchangeable
interchangeable cross-reference
interchangeable
717740139-009Interchangeable
interchangeable cross-reference
interchangeable
40308Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 58A122C744-1?
58A122C744-1 is a STUD ASSEMBLY,TURNLOCK FASTENER.
What parts can replace 58A122C744-1?
There are 23 known substitutes for 58A122C744-1: 27005, A27005, 17743 and 20 more. Substitute compatibility should be verified for your specific system.
Is 58A122C744-1 still available?
58A122C744-1 is currently cancelled.
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Last verified: July 2026