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Technical Data Sheet
PartsTable / COMPONENT / AN931C9-13
AN931C9-13 ✓ 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 GROMMET,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, groove_width: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, grommet_style: ROUND, hole_diameter: 0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN, overall_height: 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN, flange_thickness: 0.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-279-1248, 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
AN931C9-13
NSN: 5325-00-279-1248
FSC: 5325
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
groove_width0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
grommet_styleROUND
hole_diameter0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
overall_height0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
flange_thickness0.125 INCHES NOMINAL IN
features_providedCOOLANT RESISTANT AND OIL RESISTANT
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
groove_outside_diameter0.796 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
grommet_construction_typeSOLID
nonmetallic_hardness_rating45.0 MINIMUM SHORE DUROMETER A AND 55.0 MAXIMUM SHORE DUROMETER A
large_flange_outside_diameter1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
NSN5325-00-279-1248
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN931C9-13 · 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: COOLANT RESISTANT AND OIL RESISTANT
•
GROMMET STYLE: ROUND
•
GROMMET CONSTRUCTION TYPE: SOLID
•
GROOVE OUTSIDE DIAMETER: 0.796 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
•
LARGE FLANGE OUTSIDE DIAMETER: 1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDCOOLANT RESISTANT AND OIL RESISTANT
GROMMET STYLEROUND
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
GROMMET CONSTRUCTION TYPESOLID
GROOVE OUTSIDE DIAMETER0.796 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
LARGE FLANGE OUTSIDE DIAMETER1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN
OVERALL HEIGHT0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC OVERALL
NONMETALLIC HARDNESS RATING45.0 MINIMUM SHORE DUROMETER A AND 55.0 MAXIMUM SHORE DUROMETER A
HOLE DIAMETER0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
2563Interchangeable
interchangeable cross-reference
interchangeable
BACG10AG501Interchangeable
interchangeable cross-reference
interchangeable
2-763Interchangeable
IBM PCI RAID Controller
interchangeable
7000L13Interchangeable
interchangeable cross-reference
interchangeable
532604-1Interchangeable
interchangeable cross-reference
interchangeable
ZD5-6BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN931C9-13?
AN931C9-13 is a GROMMET,NONMETALLIC.
What parts can replace AN931C9-13?
There are 20 known substitutes for AN931C9-13: 2563, BACG10AG501, 2-763 and 17 more. Substitute compatibility should be verified for your specific system.
Is AN931C9-13 still available?
AN931C9-13 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