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Technical Data Sheet
PartsTable / COMPONENT / AN931-28-52
AN931-28-52 ✓ 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: 0.047 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN, grommet_style: ROUND, hole_diameter: 1.734 INCHES MINIMUM AND 1.766 INCHES MAXIMUM IN, overall_height: 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN, flange_thickness: 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-276-7797, 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
AN931-28-52
NSN: 5325-00-276-7797
FSC: 5325
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
groove_width0.047 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
grommet_styleROUND
hole_diameter1.734 INCHES MINIMUM AND 1.766 INCHES MAXIMUM IN
overall_height0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
flange_thickness0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
features_providedCOOLANT RESISTANT AND OIL RESISTANT
groove_outside_diameter3.234 INCHES MINIMUM AND 3.266 INCHES MAXIMUM IN
grommet_construction_typeSOLID
large_flange_outside_diameter3.719 INCHES MINIMUM AND 3.781 INCHES MAXIMUM IN
NSN5325-00-276-7797
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN931-28-52 · 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
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
FLANGE THICKNESS: 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
•
GROOVE OUTSIDE DIAMETER: 3.234 INCHES MINIMUM AND 3.266 INCHES MAXIMUM IN
•
GROMMET CONSTRUCTION TYPE: SOLID
•
GROOVE WIDTH: 0.047 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
•
GROMMET STYLE: ROUND
•
LARGE FLANGE OUTSIDE DIAMETER: 3.719 INCHES MINIMUM AND 3.781 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC OVERALL
FLANGE THICKNESS0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
GROOVE OUTSIDE DIAMETER3.234 INCHES MINIMUM AND 3.266 INCHES MAXIMUM IN
GROMMET CONSTRUCTION TYPESOLID
GROOVE WIDTH0.047 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
OVERALL HEIGHT0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
GROMMET STYLEROUND
LARGE FLANGE OUTSIDE DIAMETER3.719 INCHES MINIMUM AND 3.781 INCHES MAXIMUM IN
FEATURES PROVIDEDCOOLANT RESISTANT AND OIL RESISTANT
HOLE DIAMETER1.734 INCHES MINIMUM AND 1.766 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
211-1214Interchangeable
interchangeable cross-reference
interchangeable
8321391Interchangeable
interchangeable cross-reference
interchangeable
113033Interchangeable
interchangeable cross-reference
interchangeable
6001734Interchangeable
interchangeable cross-reference
interchangeable
26758Interchangeable
interchangeable cross-reference
interchangeable
7203WInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN931-28-52?
AN931-28-52 is a GROMMET,NONMETALLIC.
What parts can replace AN931-28-52?
There are 10 known substitutes for AN931-28-52: 211-1214, 8321391, 113033 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN931-28-52?
AN931-28-52 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-276-7797. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026