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857209 — GROMMET,NONMETALLIC

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

857209: GROMMET,NONMETALLIC.

The GROMMET,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, groove_width: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN, grommet_style: ROUND, hole_diameter: 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN, overall_height: 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN, flange_thickness: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-171-6387, 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
857209
NSN: 5325-00-171-6387
FSC: 5325 — Fastening Devices
CAGE: 19203 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV US ARMY RESEARCH, DEVELOPMENT AND ENGINEERING COMMAND ARMAMENT (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
groove_width0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
grommet_styleROUND
hole_diameter0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
overall_height0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
flange_thickness0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
features_providedCOOLANT RESISTANT AND OIL RESISTANT
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
groove_outside_diameter1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
grommet_construction_typeSOLID
large_flange_outside_diameter1.594 INCHES MINIMUM AND 1.656 INCHES MAXIMUM IN
material_document_and_classificationASTM D2000 BG515A14B24C32E036F19Z ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5325-00-171-6387
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 857209 · 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: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 BG515A14B24C32E036F19Z ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FEATURES PROVIDED: COOLANT RESISTANT AND OIL RESISTANT
•
LARGE FLANGE OUTSIDE DIAMETER: 1.594 INCHES MINIMUM AND 1.656 INCHES MAXIMUM IN
•
COLOR: BLACK OVERALL
•
GROOVE OUTSIDE DIAMETER: 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
GROMMET STYLEROUND
FLANGE THICKNESS0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 BG515A14B24C32E036F19Z ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FEATURES PROVIDEDCOOLANT RESISTANT AND OIL RESISTANT
LARGE FLANGE OUTSIDE DIAMETER1.594 INCHES MINIMUM AND 1.656 INCHES MAXIMUM IN
COLORBLACK OVERALL
GROOVE OUTSIDE DIAMETER1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
GROMMET CONSTRUCTION TYPESOLID
SUBSTITUTES & CROSS-REFERENCES 5
MILG3036Reference document
Same NSN cross-reference
Reference document — Identification reference
MILB3036Reference document
Same NSN cross-reference
Reference document — Secondary reference
AN931A14-20Reference document
Same NSN cross-reference
Reference document — Secondary reference
5325001716387Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS35489-51Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 857209?
857209 is a GROMMET,NONMETALLIC.
What parts can replace 857209?
There are 5 known substitutes for 857209: MILG3036, MILB3036, AN931A14-20 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 857209?
857209 is cataloged in the U.S. Government catalog under NSN 5325-00-171-6387. 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.