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Technical Data Sheet
PartsTable / COMPONENT / 4-5391P1
4-5391P1 ✓ 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 NATURAL OVERALL, groove_width: 0.188 INCHES NOMINAL IN, grommet_style: ROUND, hole_diameter: 0.250 INCHES NOMINAL IN, overall_height: 0.438 INCHES NOMINAL IN, flange_thickness: 0.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-254-3454, 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
4-5391P1
NSN: 5325-00-254-3454
FSC: 5325
CAGE: 49956 — RAYTHEON COMPANY DIV CORP (USA)
SPECIFICATIONS
materialRUBBER NATURAL OVERALL
groove_width0.188 INCHES NOMINAL IN
grommet_styleROUND
hole_diameter0.250 INCHES NOMINAL IN
overall_height0.438 INCHES NOMINAL IN
flange_thickness0.125 INCHES NOMINAL IN
groove_outside_diameter0.500 INCHES NOMINAL IN
grommet_construction_typeSOLID
large_flange_outside_diameter0.625 INCHES NOMINAL IN
NSN5325-00-254-3454
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4-5391P1 · 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
•
GROOVE OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
GROMMET STYLE: ROUND
•
GROOVE WIDTH: 0.188 INCHES NOMINAL IN
•
LARGE FLANGE OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.125 INCHES NOMINAL IN
•
GROMMET CONSTRUCTION TYPE: SOLID
•
HOLE DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.438 INCHES NOMINAL IN
GROOVE OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
GROMMET STYLEROUND
GROOVE WIDTH0.188 INCHES NOMINAL IN
LARGE FLANGE OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
FLANGE THICKNESS0.125 INCHES NOMINAL IN
GROMMET CONSTRUCTION TYPESOLID
HOLE DIAMETER0.250 INCHES NOMINAL IN
MATERIALRUBBER NATURAL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
FB0046-51N0DInterchangeable
interchangeable cross-reference
interchangeable
51N0DInterchangeable
interchangeable cross-reference
interchangeable
5238GX2Interchangeable
interchangeable cross-reference
interchangeable
S203Interchangeable
interchangeable cross-reference
interchangeable
D-638Interchangeable
interchangeable cross-reference
interchangeable
7029830Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-5391P1?
4-5391P1 is a GROMMET,NONMETALLIC.
What parts can replace 4-5391P1?
There are 11 known substitutes for 4-5391P1: FB0046-51N0D, 51N0D, 5238GX2 and 8 more. Substitute compatibility should be verified for your specific system.
Is 4-5391P1 still available?
4-5391P1 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: July 2026