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6558-254 — RESISTOR,FIXED

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

6558-254: RESISTOR,FIXED.

The RESISTOR,FIXED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, attachment_method: ROUND HOLE, surface_treatment: ANODIZE OVERALL, outer_groove_depth: 0.055 INCHES NOMINAL IN, outer_groove_width: 0.055 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN, peripheral_diameter: 3.441 INCHES MINIMUM AND 3.447 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-050-4268, 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
MRO→ MRO_GENERAL→ 6558-254
NSN: 5330-01-050-4268
NIINs: 010504268, 010951374
FSC: 5330 — Packing and Gasket Materials
CAGE: 11871 — RECON/OPTICAL, INC. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
attachment_methodROUND HOLE
surface_treatmentANODIZE OVERALL
outer_groove_depth0.055 INCHES NOMINAL IN
outer_groove_width0.055 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
peripheral_diameter3.441 INCHES MINIMUM AND 3.447 INCHES MAXIMUM IN
center_hole_diameter2.458 INCHES NOMINAL IN
cross-sectional_height0.100 INCHES NOMINAL IN
attachment_hole_diameter0.086 INCHES NOMINAL IN
attachment_feature_quantity4
cross-sectional_shape_styleSPECIAL
attachment_feature_circle_diameter2.750 INCHES NOMINAL OVERALL IN
NSN5330-01-050-4268
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6558-254 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OUTER GROOVE DEPTH: 0.055 INCHES NOMINAL IN
•
ATTACHMENT HOLE DIAMETER: 0.086 INCHES NOMINAL IN
•
ATTACHMENT FEATURE QUANTITY: 4
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SPECIAL
•
ATTACHMENT FEATURE CIRCLE DIAMETER: 2.750 INCHES NOMINAL OVERALL IN
•
PERIPHERAL DIAMETER: 3.441 INCHES MINIMUM AND 3.447 INCHES MAXIMUM IN
•
OUTER GROOVE WIDTH: 0.055 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OUTER GROOVE DEPTH0.055 INCHES NOMINAL IN
ATTACHMENT HOLE DIAMETER0.086 INCHES NOMINAL IN
ATTACHMENT FEATURE QUANTITY4
CROSS-SECTIONAL HEIGHT0.100 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESPECIAL
ATTACHMENT FEATURE CIRCLE DIAMETER2.750 INCHES NOMINAL OVERALL IN
PERIPHERAL DIAMETER3.441 INCHES MINIMUM AND 3.447 INCHES MAXIMUM IN
OUTER GROOVE WIDTH0.055 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
SURFACE TREATMENTANODIZE OVERALL
CENTER HOLE DIAMETER2.458 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
12266631Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6558-254?
6558-254 is a RESISTOR,FIXED. It is classified as a MRO (MRO_GENERAL).
What parts can replace 6558-254?
There is 1 known substitute for 6558-254: 12266631. Substitute compatibility should be verified for your specific system.
What is the NSN for 6558-254?
6558-254 is cataloged in the U.S. Government catalog under NSN 5330-01-050-4268. 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.