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331C264H28 — EYELET,METALLIC

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

331C264H28: EYELET,METALLIC.

The EYELET,METALLIC is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 260 OVERALL, barrel_style: TAPERED ROUND TYPE, flange_style: FLANGE, barrel_height: 0.555 INCHES MINIMUM AND 0.571 INCHES MAXIMUM IN, surface_treatment: TIN OVERALL, barrel_outside_diameter: 0.147 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-682-7573, 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
331C264H28
NSN: 5325-00-682-7573
FSC: 5325 — Fastening Devices
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY 260 OVERALL
barrel_styleTAPERED ROUND TYPE
flange_styleFLANGE
barrel_height0.555 INCHES MINIMUM AND 0.571 INCHES MAXIMUM IN
surface_treatmentTIN OVERALL
barrel_outside_diameter0.147 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
flange_outside_diameter0.244 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
barrel_largest_outside_diameter0.158 INCHES MAXIMUM IN
surface_treatment_document_and_classificationASTM B545 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5325-00-682-7573
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 331C264H28 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B545 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
FLANGE OUTSIDE DIAMETER: 0.244 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
•
BARREL LARGEST OUTSIDE DIAMETER: 0.158 INCHES MAXIMUM IN
•
SURFACE TREATMENT: TIN OVERALL
•
BARREL OUTSIDE DIAMETER: 0.147 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 260 OVERALL
•
FLANGE STYLE: FLANGE
•
BARREL STYLE: TAPERED ROUND TYPE
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B545 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
FLANGE OUTSIDE DIAMETER0.244 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN
BARREL LARGEST OUTSIDE DIAMETER0.158 INCHES MAXIMUM IN
SURFACE TREATMENTTIN OVERALL
BARREL OUTSIDE DIAMETER0.147 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 260 OVERALL
FLANGE STYLEFLANGE
BARREL STYLETAPERED ROUND TYPE
BARREL HEIGHT0.555 INCHES MINIMUM AND 0.571 INCHES MAXIMUM 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 1
S5685Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 331C264H28?
331C264H28 is a EYELET,METALLIC.
What parts can replace 331C264H28?
There is 1 known substitute for 331C264H28: S5685. Substitute compatibility should be verified for your specific system.
What is the NSN for 331C264H28?
331C264H28 is cataloged in the U.S. Government catalog under NSN 5325-00-682-7573. 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.