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PartsTable / COMPONENT / DD453S49-49PC19
DD453S49-49PC19 ✓ 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 PACKING NUT is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, thread_size: 1.250-12, thread_class: 3A A, hole_diameter: 0.219 INCHES NOMINAL IN, thread_length: 0.125 INCHES NOMINAL IN, overall_length: 1.250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-274-9667, 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
DD453S49-49PC19
NSN: 4730-00-274-9667
FSC: 4730
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY
thread_size1.250-12
thread_class3A A
hole_diameter0.219 INCHES NOMINAL IN
thread_length0.125 INCHES NOMINAL IN
overall_length1.250 INCHES NOMINAL IN
strength_ratingERR-060
style_designatorROUND, EXTERNAL THREAD, INVERTED FLARE
thread_directionRIGHT-HAND
seat_angle_in_deg65.0
hole_or_slot_quantity6
screw_thread_locationEXTERNAL
NSN4730-00-274-9667
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: DD453S49-49PC19 · 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
•
THREAD LENGTH: 0.125 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 65.0
•
HOLE OR SLOT QUANTITY: 6
•
SCREW THREAD SERIES DESIGNATOR: UNF
•
MAJOR UNTHREADED OUTSIDE DIAMETER: 1.500 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
HOLE DIAMETER: 0.219 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.125 INCHES NOMINAL IN
SEAT ANGLE IN DEG65.0
HOLE OR SLOT QUANTITY6
SCREW THREAD SERIES DESIGNATORUNF
MAJOR UNTHREADED OUTSIDE DIAMETER1.500 INCHES NOMINAL IN
OVERALL LENGTH1.250 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
HOLE DIAMETER0.219 INCHES NOMINAL IN
MATERIAL HARDNESS RATING28.0 ROCKWELL C NOMINAL
STYLE DESIGNATORROUND, EXTERNAL THREAD, INVERTED FLARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
110 51/64Interchangeable
interchangeable cross-reference
interchangeable
C12227Interchangeable
interchangeable cross-reference
interchangeable
53151Interchangeable
interchangeable cross-reference
interchangeable
160606Interchangeable
interchangeable cross-reference
interchangeable
133Interchangeable
interchangeable cross-reference
interchangeable
46AX306Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DD453S49-49PC19?
DD453S49-49PC19 is a PACKING NUT.
What parts can replace DD453S49-49PC19?
There are 24 known substitutes for DD453S49-49PC19: 110 51/64, C12227, 53151 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DD453S49-49PC19?
DD453S49-49PC19 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-274-9667. 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