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8981-SS-21 — FERRULE,HANDLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8981-SS-21: FERRULE,HANDLE.

The FERRULE,HANDLE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, recess_depth: 0.282 INCHES NOMINAL0.282 INCHES NOMINAL IN, hole_diameter: 0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN, overall_height: 0.370 INCHES MINIMUM AND 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM0.380 INCHES MAXIMUM IN, mounting_method: UNTHREADED HOLE(S)UNTHREADED HOLE(S), recess_diameter: 0.380 INCHES MINIMUM AND 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM0.390 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-535-1894, 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
8981-SS-21
NSN: 5340-01-535-1894
FSC: 5340 — Hardware, Commercial
CAGE: 55566 — MATTHEW WARREN, INC DBA RAF ELECTRONIC HARDWARE DIV RAF ELECTRONIC HARDWARE, LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
recess_depth0.282 INCHES NOMINAL0.282 INCHES NOMINAL IN
hole_diameter0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN
overall_height0.370 INCHES MINIMUM AND 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM0.380 INCHES MAXIMUM IN
mounting_methodUNTHREADED HOLE(S)UNTHREADED HOLE(S)
recess_diameter0.380 INCHES MINIMUM AND 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM0.390 INCHES MAXIMUM IN
outside_diameter0.620 INCHES MINIMUM AND 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM0.630 INCHES MAXIMUM IN
style_designatorROUND
surface_treatmentANODIZE OVERALL
mounting_facility_diameter0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN
mounting_facility_quantity11
material_document_and_classificationASTM-A-581 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5340-01-535-1894
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8981-SS-21 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
•
MOUNTING FACILITY DIAMETER: 0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN
•
MOUNTING FACILITY QUANTITY: 11
•
MOUNTING METHOD: UNTHREADED HOLE(S)UNTHREADED HOLE(S)
•
STYLE DESIGNATOR: ROUND
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A-581 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.620 INCHES MINIMUM AND 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM0.630 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.282 INCHES NOMINAL0.282 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY DIAMETER0.245 INCHES MINIMUM AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM0.255 INCHES MAXIMUM IN
OVERALL HEIGHT0.370 INCHES MINIMUM AND 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM0.380 INCHES MAXIMUM IN
MOUNTING FACILITY QUANTITY11
MOUNTING METHODUNTHREADED HOLE(S)UNTHREADED HOLE(S)
STYLE DESIGNATORROUND
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A-581 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.620 INCHES MINIMUM AND 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM0.630 INCHES MAXIMUM IN
RECESS DEPTH0.282 INCHES NOMINAL0.282 INCHES NOMINAL IN
RECESS DIAMETER0.380 INCHES MINIMUM AND 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM0.390 INCHES MAXIMUM IN
SURFACE TREATMENTANODIZE OVERALL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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 8981-SS-21?
8981-SS-21 is a FERRULE,HANDLE.
What is the NSN for 8981-SS-21?
8981-SS-21 is cataloged in the U.S. Government catalog under NSN 5340-01-535-1894. 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.