PartsTable
Technical Data Sheet
Download PDF

819630 — SCREW,MACHINE

✓ Government record, cited
Zapf · ORING SEAL
PRODUCT OVERVIEW

819630: SCREW,MACHINE.

The SCREW,MACHINE is a Zapf industrial component. Key specifications include special_features: HEADLESS SLOT; NICKEL PLATED; BRASS, nominal_thread_diameter: 0.375 INCHES IN, thread_quantity_per_inch: 32, thread_series_designator: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5331-01-203-6828, 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
819630
NSN: 5331-01-203-6828
NIINs: 012036828, 015086718
FSC: 5331 — O-ring
CAGE: A4249 — IVECO DEFENCE VEHICLES S.P.A. (ITA)
SPECIFICATIONS
special_featuresHEADLESS SLOT; NICKEL PLATED; BRASS
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5331-01-203-6828
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 819630 MFR: Zapf ⚠ 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
•
TEMP RATING: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 3.355 INCHES MINIMUM AND 3.419 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
ELONGATION PERCENTAGE: 331 MAXIMUM
•
CENTER HOLE DIAMETER: 3.085 INCHES MINIMUM AND 3.133 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
TEMP RATING-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
OUTSIDE DIAMETER3.355 INCHES MINIMUM AND 3.419 INCHES MAXIMUM IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
ELONGATION PERCENTAGE331 MAXIMUM
CENTER HOLE DIAMETER3.085 INCHES MINIMUM AND 3.133 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 8
OR-235Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
756055Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8196930Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
CM1-235-B46AReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
2-235 N674-70Reference document
Same NSN cross-reference
Reference document — Secondary reference
01-425-0366-4 PIECE 31Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedNo demilitarization required
Ready to buy 819630?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 819630?
819630 is a SCREW,MACHINE manufactured by Zapf.
What parts can replace 819630?
There are 8 known substitutes for 819630: OR-235, 756055, 8196930 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 819630?
819630 is cataloged in the U.S. Government catalog under NSN 5331-01-203-6828. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 819630

✓ 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.