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Technical Data Sheet
PartsTable / COMPONENT / HN5G-51-1
HN5G-51-1 ✓ 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 color: BLACK BARREL, material: PLASTIC POLYCARBONATE OVERALL, groove_width: 0.042 INCHES NOMINAL IN, grommet_style: ROUND, hole_diameter: 0.312 INCHES NOMINAL IN, overall_height: 0.466 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-051-7937, 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
HN5G-51-1
NSN: 5325-01-051-7937
FSC: 5325
CAGE: F7652 — KLX AEROSPACE SOLUTIONS II SAS (FRA)
SPECIFICATIONS
colorBLACK BARREL
materialPLASTIC POLYCARBONATE OVERALL
groove_width0.042 INCHES NOMINAL IN
grommet_styleROUND
hole_diameter0.312 INCHES NOMINAL IN
overall_height0.466 INCHES NOMINAL IN
flange_thickness0.095 INCHES NOMINAL IN
groove_outside_diameter0.297 INCHES NOMINAL IN
grommet_construction_typeSPLIT
large_flange_outside_diameter0.420 INCHES NOMINAL IN
NSN5325-01-051-7937
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HN5G-51-1 · 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
•
COLOR: BLACK BARREL
•
GROOVE OUTSIDE DIAMETER: 0.297 INCHES NOMINAL IN
•
GROMMET CONSTRUCTION TYPE: SPLIT
•
FLANGE THICKNESS: 0.095 INCHES NOMINAL IN
•
GROMMET STYLE: ROUND
•
GROOVE WIDTH: 0.042 INCHES NOMINAL IN
•
LARGE FLANGE OUTSIDE DIAMETER: 0.420 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
COLORBLACK BARREL
GROOVE OUTSIDE DIAMETER0.297 INCHES NOMINAL IN
GROMMET CONSTRUCTION TYPESPLIT
FLANGE THICKNESS0.095 INCHES NOMINAL IN
OVERALL HEIGHT0.466 INCHES NOMINAL IN
GROMMET STYLEROUND
GROOVE WIDTH0.042 INCHES NOMINAL IN
LARGE FLANGE OUTSIDE DIAMETER0.420 INCHES NOMINAL IN
HOLE DIAMETER0.312 INCHES NOMINAL IN
MATERIALPLASTIC POLYCARBONATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
55911Interchangeable
interchangeable cross-reference
interchangeable
933B055911Interchangeable
interchangeable cross-reference
interchangeable
4029-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HN5G-51-1?
HN5G-51-1 is a GROMMET,NONMETALLIC.
What parts can replace HN5G-51-1?
There are 3 known substitutes for HN5G-51-1: 55911, 933B055911, 4029-3. Substitute compatibility should be verified for your specific system.
What is the NSN for HN5G-51-1?
HN5G-51-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-051-7937. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026