PartsTable
Technical Data Sheet

PR 3 1/2 I4 — RECEPTACLE,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

PR 3 1/2 I4: RECEPTACLE,TURNLOCK FASTENER.

The RECEPTACLE,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, mounting_style: PLAIN W/MOUNTING HOLE, receptacle_width: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN, special_features: COLOR YELLOW, receptacle_height: 0.625 INCHES NOMINAL IN, surface_treatment: CHROMATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-249-3769, 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
PR 3 1/2 I4
NSN: 5325-01-249-3769
NIINs: 012493769, 012580901
FSC: 5325 — Fastening Devices
CAGE: 72794 — SOUTHCO INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
mounting_stylePLAIN W/MOUNTING HOLE
receptacle_width0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
special_featuresCOLOR YELLOW
receptacle_height0.625 INCHES NOMINAL IN
surface_treatmentCHROMATE OVERALL
receptacle_overall_length5.937 INCHES NOMINAL IN
turnlock_receptacle_styleRECEPTACLE
turnlock_mounting_hole_diameter0.128 INCHES NOMINAL IN
material_document_and_classificationQQ-A-200/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-C-81706,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
center_to_center_distance_between_mounting_holes0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
NSN5325-01-249-3769
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PR 3 1/2 I4 · 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
•
RECEPTACLE OVERALL LENGTH: 5.937 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-81706,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
•
MOUNTING STYLE: PLAIN W/MOUNTING HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
TURNLOCK RECEPTACLE STYLE: RECEPTACLE
•
RECEPTACLE WIDTH: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
•
TURNLOCK MOUNTING HOLE DIAMETER: 0.128 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
RECEPTACLE OVERALL LENGTH5.937 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-81706,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
MOUNTING STYLEPLAIN W/MOUNTING HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TURNLOCK RECEPTACLE STYLERECEPTACLE
RECEPTACLE WIDTH0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
TURNLOCK MOUNTING HOLE DIAMETER0.128 INCHES NOMINAL IN
SPECIAL FEATURESCOLOR YELLOW
SURFACE TREATMENTCHROMATE OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
110-045-15Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PR 3 1/2 I4?
PR 3 1/2 I4 is a RECEPTACLE,TURNLOCK FASTENER.
What parts can replace PR 3 1/2 I4?
There is 1 known substitute for PR 3 1/2 I4: 110-045-15. Substitute compatibility should be verified for your specific system.
What is the NSN for PR 3 1/2 I4?
PR 3 1/2 I4 is cataloged in the U.S. Government catalog under NSN 5325-01-249-3769. 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.