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Technical Data Sheet
PartsTable / COMPONENT / SL3149-4-12
SL3149-4-12 ✓ 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

The INSERT,PANEL FASTENER is a the manufacturer industrial component. Key specifications include hole_type: THREADEDTHREADED, insert_style: FLUSH FLANGEFLUSH FLANGE, body_diameter: 0.350 INCHES MINIMUM AND 0.350 INCHES MINIMUM AND 0.370 INCHES MAXIMUM0.370 INCHES MAXIMUM IN, overall_length: 0.812 INCHES NOMINAL0.812 INCHES NOMINAL IN, flange_diameter: 0.687 INCHES NOMINAL0.687 INCHES NOMINAL IN, features_provided: ALL METAL LOCKING ELEMENTALL METAL LOCKING ELEMENT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-025-3803, 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
SL3149-4-12
NSN: 5325-01-025-3803
FSC: 5325
CAGE: 97393 — SPS TECHNOLOGIES LLC DBA SHUR-LOK COMPANY DIV AEROSPACE ENGINEERED PRODUCTS DIVISION (USA)
SPECIFICATIONS
hole_typeTHREADEDTHREADED
insert_styleFLUSH FLANGEFLUSH FLANGE
body_diameter0.350 INCHES MINIMUM AND 0.350 INCHES MINIMUM AND 0.370 INCHES MAXIMUM0.370 INCHES MAXIMUM IN
overall_length0.812 INCHES NOMINAL0.812 INCHES NOMINAL IN
flange_diameter0.687 INCHES NOMINAL0.687 INCHES NOMINAL IN
features_providedALL METAL LOCKING ELEMENTALL METAL LOCKING ELEMENT
shoulder_diameter0.368 INCHES MINIMUM AND 0.368 INCHES MINIMUM AND 0.378 INCHES MAXIMUM0.378 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
thread_size_and_series/type_designator0.250-28 UNIFIED NATIONAL JOINT FINE (UNJF)
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5325-01-025-3803
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SL3149-4-12 · 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
•
FEATURES PROVIDED: ALL METAL LOCKING ELEMENTALL METAL LOCKING ELEMENT
•
BODY DIAMETER: 0.350 INCHES MINIMUM AND 0.350 INCHES MINIMUM AND 0.370 INCHES MAXIMUM0.370 INCHES MAXIMUM IN
•
INSERT STYLE: FLUSH FLANGEFLUSH FLANGE
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.250-28 UNIFIED NATIONAL JOINT FINE (UNJF)
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
HOLE TYPE: THREADEDTHREADED
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDALL METAL LOCKING ELEMENTALL METAL LOCKING ELEMENT
BODY DIAMETER0.350 INCHES MINIMUM AND 0.350 INCHES MINIMUM AND 0.370 INCHES MAXIMUM0.370 INCHES MAXIMUM IN
INSERT STYLEFLUSH FLANGEFLUSH FLANGE
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.250-28 UNIFIED NATIONAL JOINT FINE (UNJF)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
HOLE TYPETHREADEDTHREADED
FLANGE DIAMETER0.687 INCHES NOMINAL0.687 INCHES NOMINAL IN
OVERALL LENGTH0.812 INCHES NOMINAL0.812 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
1484Interchangeable
interchangeable cross-reference
interchangeable
RD20338Interchangeable
interchangeable cross-reference
interchangeable
T-244-MInterchangeable
interchangeable cross-reference
interchangeable
72-700476-1Interchangeable
interchangeable cross-reference
interchangeable
MS35431-3Interchangeable
interchangeable cross-reference
interchangeable
G508Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SL3149-4-12?
SL3149-4-12 is a INSERT,PANEL FASTENER.
What parts can replace SL3149-4-12?
There are 22 known substitutes for SL3149-4-12: 1484, RD20338, T-244-M and 19 more. Substitute compatibility should be verified for your specific system.
Is SL3149-4-12 still available?
SL3149-4-12 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026