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12R1-188 — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12R1-188: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.300 INCHES NOMINAL IN, material: STEEL OVERALL, drive_type: CROSS RECESS, eyelet_length: 0.110 INCHES NOMINAL IN, stud_diameter: 0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-232-9232, 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
12R1-188
NSN: 5325-00-232-9232
FSC: 5325 — Fastening Devices
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
diameter0.300 INCHES NOMINAL IN
materialSTEEL OVERALL
drive_typeCROSS RECESS
eyelet_length0.110 INCHES NOMINAL IN
stud_diameter0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
stud_assembly_styleSTUD ASSEMBLY
securing_device_typeWASHER
eyelet_outside_diameter0.354 INCHES NOMINAL IN
turnlock_stud_head_styleFILLISTER
material_accommodated_thickness0.125 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5325-00-232-9232
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12R1-188 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
EYELET OUTSIDE DIAMETER: 0.354 INCHES NOMINAL IN
•
DRIVE TYPE: CROSS RECESS
•
MATERIAL ACCOMMODATED THICKNESS: 0.125 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN
•
DIAMETER: 0.300 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: WASHER
•
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD: 0.429 INCHES NOMINAL IN
•
TURNLOCK STUD HEAD STYLE: FILLISTER
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EYELET OUTSIDE DIAMETER0.354 INCHES NOMINAL IN
DRIVE TYPECROSS RECESS
MATERIAL ACCOMMODATED THICKNESS0.125 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN
DIAMETER0.300 INCHES NOMINAL IN
SECURING DEVICE TYPEWASHER
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD0.429 INCHES NOMINAL IN
TURNLOCK STUD HEAD STYLEFILLISTER
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 1
1450031-11Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12R1-188?
12R1-188 is a STUD ASSEMBLY,TURNLOCK FASTENER.
What parts can replace 12R1-188?
There is 1 known substitute for 12R1-188: 1450031-11. Substitute compatibility should be verified for your specific system.
What is the NSN for 12R1-188?
12R1-188 is cataloged in the U.S. Government catalog under NSN 5325-00-232-9232. This indicates validated use in U.S. government and defense supply chains.
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