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Technical Data Sheet
28737 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The INVERTED NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include special_features: PROMINA DRAM PPM(P800), PSM (P200/400/800) PROCESSOR MODULES (32M), end_item_identification: BANDWIDTH MANAGER (BWM), part_name_assigned_by_controlling_agency: UPGRADE,32MB DRAM MB. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-268-3448, 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
MRO MRO_GENERAL 28737
NSN: 5330-00-268-3448
FSC: 5330
CAGE: 96046 — CRANE PUMPS & SYSTEMS PFT CORP DIV CRANE PUMPS & SYSTEM PFT CORP. (USA)
SPECIFICATIONS
special_featuresPROMINA DRAM PPM(P800), PSM (P200/400/800) PROCESSOR MODULES (32M)
end_item_identificationBANDWIDTH MANAGER (BWM)
part_name_assigned_by_controlling_agencyUPGRADE,32MB DRAM MB
NSN5330-00-268-3448
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 28737 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
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH: 0.875 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 1.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MATERIAL: CORK OVERALL
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 1.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
STYLE DESIGNATOR: NON-CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.875 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH1.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OVERALL LENGTH3.125 INCHES NOMINAL IN
MATERIALCORK OVERALL
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH1.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
STYLE DESIGNATORNON-CIRCULAR
OVERALL WIDTH2.125 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.094 INCHES NOMINAL IN
APERTURE DIAMETER0.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
19986R1Interchangeable
interchangeable cross-reference
interchangeable
441392Interchangeable
interchangeable cross-reference
interchangeable
278953R91Interchangeable
interchangeable cross-reference
interchangeable
T304Interchangeable
interchangeable cross-reference
interchangeable
28737Interchangeable
interchangeable cross-reference
interchangeable
P8391Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 28737?
28737 is a INVERTED NUT,TUBE COUPLING. It is classified as a MRO (MRO_GENERAL).
What parts can replace 28737?
There are 11 known substitutes for 28737: 19986R1, 441392, 278953R91 and 8 more. Substitute compatibility should be verified for your specific system.
Is 28737 still available?
28737 is currently cancelled.
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