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Technical Data Sheet
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328AS271-1 — Technical Data Sheet

✓ 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: 0.125 INCHES NOMINAL IN, grommet_style: ROUND, hole_diameter: 0.375 INCHES NOMINAL IN, overall_height: 0.312 INCHES NOMINAL IN, flange_thickness: 0.094 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-638-9385, 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
328AS271-1
NSN: 5325-00-638-9385
FSC: 5325
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
groove_width0.125 INCHES NOMINAL IN
grommet_styleROUND
hole_diameter0.375 INCHES NOMINAL IN
overall_height0.312 INCHES NOMINAL IN
flange_thickness0.094 INCHES NOMINAL IN
groove_outside_diameter0.500 INCHES NOMINAL IN
grommet_construction_typeSOLID
large_flange_outside_diameter0.625 INCHES NOMINAL IN
NSN5325-00-638-9385
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 328AS271-1 · 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 CONSTRUCTION TYPE: SOLID
•
GROOVE OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
GROMMET STYLE: ROUND
•
GROOVE WIDTH: 0.125 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.094 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.375 INCHES NOMINAL IN
•
LARGE FLANGE OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
GROMMET CONSTRUCTION TYPESOLID
GROOVE OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
GROMMET STYLEROUND
GROOVE WIDTH0.125 INCHES NOMINAL IN
FLANGE THICKNESS0.094 INCHES NOMINAL IN
OVERALL HEIGHT0.312 INCHES NOMINAL IN
HOLE DIAMETER0.375 INCHES NOMINAL IN
LARGE FLANGE OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
1340InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
350-RTInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2012-T 12InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RB334InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
612InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1172InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 328AS271-1?
328AS271-1 is a GROMMET,NONMETALLIC.
What parts can replace 328AS271-1?
There are 22 known substitutes for 328AS271-1: 1340, 350-RT, 2012-T 12 and 19 more. Substitute compatibility should be verified for your specific system.
Is 328AS271-1 still available?
328AS271-1 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: September 2026