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28191 — GROMMET,NONMETALLIC

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

28191: GROMMET,NONMETALLIC.

The GROMMET,NONMETALLIC is a the manufacturer industrial component. Key specifications include special_features: CONSISTS OF A RUBBER RING. USED FOR HOLDING THE WINDSCREEN IN PLACE AROUND THE MICROPHONE, criticality_code_justification: FEAT.

This part is cataloged in the U.S. Government catalog under NSN 5325-00-282-7778, 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
28191
NSN: 5325-00-282-7778
NIINs: 002827778, 006679744, 014552301
FSC: 5325 — Fastening Devices
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
special_featuresCONSISTS OF A RUBBER RING. USED FOR HOLDING THE WINDSCREEN IN PLACE AROUND THE MICROPHONE
criticality_code_justificationFEAT
NSN5325-00-282-7778
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 28191 · 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
•
GROMMET STYLE: ROUND
•
FLANGE THICKNESS: 0.070 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 3227 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FEATURES PROVIDED: OIL RESISTANT AND COOLANT RESISTANT
•
LARGE FLANGE OUTSIDE DIAMETER: 1.062 INCHES NOMINAL IN
•
GROOVE OUTSIDE DIAMETER: 0.969 INCHES NOMINAL IN
•
GROMMET CONSTRUCTION TYPE: SOLID
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.234 INCHES NOMINAL IN
GROMMET STYLEROUND
FLANGE THICKNESS0.070 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 3227 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FEATURES PROVIDEDOIL RESISTANT AND COOLANT RESISTANT
LARGE FLANGE OUTSIDE DIAMETER1.062 INCHES NOMINAL IN
GROOVE OUTSIDE DIAMETER0.969 INCHES NOMINAL IN
GROMMET CONSTRUCTION TYPESOLID
MATERIALRUBBER SYNTHETIC OVERALL
GROOVE WIDTH0.094 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
83-00107Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A165319Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28191?
28191 is a GROMMET,NONMETALLIC.
What parts can replace 28191?
There are 2 known substitutes for 28191: 83-00107, A165319. Substitute compatibility should be verified for your specific system.
What is the NSN for 28191?
28191 is cataloged in the U.S. Government catalog under NSN 5325-00-282-7778. 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.