PartsTable
Technical Data Sheet
Download PDF

MILG16491 — GROMMET,METALLIC

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MILG16491: GROMMET,METALLIC.

The GROMMET,METALLIC is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL, barrel_style: TAPERED RECTANGULAR WITH ROUND ENDS TYPE, barrel_width: 0.288 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN, flange_style: FLANGE, flange_width: 0.910 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN, washer_style: BARREL TYPE. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-009-2689, 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
MILG16491
NSN: 5325-00-009-2689
NIINs: 000092689, 000743118, 002024385, 002187528, 002316589, 002316591, 002316592, 002316604, 002316625, 002629191, 002629193, 002910286, 002910287, 002910296, 002910297, 002910298, 006376660, 006410292, 006410294, 006410295, 006410402, 006410403, 006410408, 006411610, 010280945, 012506589, 012513513, 012954768
FSC: 5325 — Fastening Devices
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL
barrel_styleTAPERED RECTANGULAR WITH ROUND ENDS TYPE
barrel_width0.288 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
flange_styleFLANGE
flange_width0.910 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN
washer_styleBARREL TYPE
barrel_height0.355 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN
barrel_length1.404 INCHES MINIMUM AND 1.406 INCHES MAXIMUM IN
flange_length2.010 INCHES MINIMUM AND 2.020 INCHES MAXIMUM IN
surface_treatmentOXIDE FILM OVERALL
barrel_largest_width0.393 INCHES MINIMUM AND 0.397 INCHES MAXIMUM IN
barrel_largest_length1.513 INCHES MINIMUM AND 1.517 INCHES MAXIMUM IN
NSN5325-00-009-2689
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MILG16491 · 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
•
FLANGE OUTSIDE DIAMETER: 0.545 INCHES NOMINAL IN
•
BARREL LARGEST OUTSIDE DIAMETER: 0.290 INCHES NOMINAL IN
•
WASHER STYLE: SINGLE ROW TOOTHED
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 2 CLASS AND 0 SIZE
•
SURFACE TREATMENT: NICKEL OVERALL
•
BARREL OUTSIDE DIAMETER: 0.262 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
FLANGE STYLE: FLANGE
TECHNICAL CHARACTERISTICS
FLANGE OUTSIDE DIAMETER0.545 INCHES NOMINAL IN
BARREL LARGEST OUTSIDE DIAMETER0.290 INCHES NOMINAL IN
WASHER STYLESINGLE ROW TOOTHED
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 2 CLASS AND 0 SIZE
SURFACE TREATMENTNICKEL OVERALL
BARREL OUTSIDE DIAMETER0.262 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
FLANGE STYLEFLANGE
BARREL STYLETAPERED ROUND TYPE
BARREL HEIGHT0.175 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy MILG16491?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MILG16491?
MILG16491 is a GROMMET,METALLIC.
What is the NSN for MILG16491?
MILG16491 is cataloged in the U.S. Government catalog under NSN 5325-00-009-2689. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MILG16491

✓ 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.