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31003-01 — CHAIN,BEAD

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

31003-01: CHAIN,BEAD.

The CHAIN,BEAD is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: BALL CHAIN KEYCHAIN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-046-3402, 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
31003-01
NSN: 5340-01-046-3402
NIINs: 010463402, 016444350
FSC: 5340 — Hardware, Commercial
CAGE: 96214 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyBALL CHAIN KEYCHAIN
NSN5340-01-046-3402
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 31003-01 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
•
FLANGE THICKNESS: 0.100 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 2.400 INCHES NOMINAL IN
•
FIRST RECESS DIAMETER: 3.300 INCHES NOMINAL IN
•
SECOND RECESS INSIDE HEIGHT: 3.400 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: CIRCULAR RECESS
•
OUTSIDE DIAMETER: 3.510 INCHES MINIMUM AND 3.690 INCHES MAXIMUM IN
•
BODY RADIUS: 1.800 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.400 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.100 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT2.400 INCHES NOMINAL IN
FIRST RECESS DIAMETER3.300 INCHES NOMINAL IN
SECOND RECESS INSIDE HEIGHT3.400 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLECIRCULAR RECESS
OUTSIDE DIAMETER3.510 INCHES MINIMUM AND 3.690 INCHES MAXIMUM IN
BODY RADIUS1.800 INCHES NOMINAL IN
INSIDE DIAMETER1.400 INCHES NOMINAL IN
SPECIAL FEATURESITEM HAS 1 LOBE,OA WIDTH 0.350 IN. W/ MTG HOLE DIA 0.130 IN.,LOBE HAS 0.100 IN. RADIUS 2 PL; OA HGHT 3.440 TO 3.560 IN. IN
MATERIALRUBBER SILICONE
SUBSTITUTES & CROSS-REFERENCES 1
0310030-0001Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 31003-01?
31003-01 is a CHAIN,BEAD.
What parts can replace 31003-01?
There is 1 known substitute for 31003-01: 0310030-0001. Substitute compatibility should be verified for your specific system.
What is the NSN for 31003-01?
31003-01 is cataloged in the U.S. Government catalog under NSN 5340-01-046-3402. 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.