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515739 — GASKET

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

515739: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, hole_diameter: 0.340 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 6.270 INCHES NOMINAL IN, overall_length: 7.722 INCHES NOMINAL IN, cross-sectional_thickness: 0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-144-3915, 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
515739
NSN: 5305-00-144-3915
NIINs: 001443915, 007767385
FSC: 5305 — Screws
CAGE: 77294 — PIPER INDUSTRIAL MANUFACTURING COMPANY, LLC DIV PIPER INDUSTRIAL MANUFACTURING COMPANY (USA)
SPECIFICATIONS
materialASBESTOS AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
hole_diameter0.340 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width6.270 INCHES NOMINAL IN
overall_length7.722 INCHES NOMINAL IN
cross-sectional_thickness0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803,+1141-A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5305-00-144-3915
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 515739 · 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
•
HEAD HEIGHT: 0.086 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
FASTENER LENGTH: 0.500 INCHES NOMINAL IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE
•
THREAD LENGTH: 0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: BUTTON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.086 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM
FASTENER LENGTH0.500 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE
THREAD LENGTH0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEBUTTON
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL OR STEEL COMP 1010
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH LBS
SUBSTITUTES & CROSS-REFERENCES 6
2018863Reference document
Same NSN cross-reference
Reference document — Secondary reference
FFS92ANDTYPE3ANDSTYLE7CReference document
Same NSN cross-reference
Reference document — Identification reference
AN526-632R8Reference document
Same NSN cross-reference
Reference document — Secondary reference
415 149Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4177400-020Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
0.13832UNC2AX0.500LGTY3STY7CReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 515739?
515739 is a GASKET.
What parts can replace 515739?
There are 6 known substitutes for 515739: 2018863, FFS92ANDTYPE3ANDSTYLE7C, AN526-632R8 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 515739?
515739 is cataloged in the U.S. Government catalog under NSN 5305-00-144-3915. This indicates validated use in U.S. government and defense supply chains.
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