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Technical Data Sheet
PartsTable / COMPONENT / SS400-3
SS400-3 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The TEE,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, leg_length: 1.031 INCHES NOMINAL ALL ENDS IN, seat_angle: 20.0 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARELESS (TUBE) ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-481-6082, 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
SS400-3
NSN: 4730-00-481-6082
FSC: 4730
CAGE: U6751 — SWAGELOK UK LTD (GBR)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
leg_length1.031 INCHES NOMINAL ALL ENDS IN
seat_angle20.0 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDS
special_featuresUSED ON 3655-01-281-7747
nominal_thread_size0.438 INCHES ALL ENDS IN
media_for_which_designedOXYGEN, LIQUID SINGLE RESPONSE
thread_series_designatorUNF ALL ENDS
furnished_items_and_quantity3 SHORT COUPLING NUT WITH SLEEVE
criticality_code_justificationZZZY
NSN4730-00-481-6082
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SS400-3 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
•
CRITICALITY CODE JUSTIFICATION: ZZZY
TECHNICAL CHARACTERISTICS (FLIS)
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATIONZZZY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
BU3316Interchangeable
interchangeable cross-reference
interchangeable
9512KInterchangeable
interchangeable cross-reference
interchangeable
4003316Interchangeable
interchangeable cross-reference
interchangeable
4TTT-316Interchangeable
interchangeable cross-reference
interchangeable
10338215Interchangeable
interchangeable cross-reference
interchangeable
1551AS291-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SS400-3?
SS400-3 is a TEE,TUBE.
What parts can replace SS400-3?
There are 13 known substitutes for SS400-3: BU3316, 9512K, 4003316 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SS400-3?
SS400-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-481-6082. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026