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H8121 — WASHER,SPLIT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

H8121: WASHER,SPLIT.

The WASHER,SPLIT is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, hole_diameter: 0.770 INCHES NOMINAL IN, outside_diameter: 1.370 INCHES NOMINAL IN, style_designator: SPLIT, material_thickness: 0.062 INCHES NOMINAL IN, material_document_and_classification: JDC-281-G FSCM 22167 MFR REF SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-498-2971, 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
H8121
NSN: 5310-00-498-2971
FSC: 5310 — Nuts and Washers
CAGE: 21476 — RICHARDS INDUSTRIES VALVE GROUP JORDAN VALVE DIV (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
hole_diameter0.770 INCHES NOMINAL IN
outside_diameter1.370 INCHES NOMINAL IN
style_designatorSPLIT
material_thickness0.062 INCHES NOMINAL IN
material_document_and_classificationJDC-281-G FSCM 22167 MFR REF SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-00-498-2971
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H8121 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: SPLIT
•
MATERIAL DOCUMENT AND CLASSIFICATION: JDC-281-G FSCM 22167 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.370 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
HOLE DIAMETER: 0.770 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT
MATERIAL DOCUMENT AND CLASSIFICATIONJDC-281-G FSCM 22167 MFR REF SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.370 INCHES NOMINAL IN
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
HOLE DIAMETER0.770 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 H8121?
H8121 is a WASHER,SPLIT.
What is the NSN for H8121?
H8121 is cataloged in the U.S. Government catalog under NSN 5310-00-498-2971. 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.