PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51991Strainer,sediment

Spirax Sarco Inc Dba Spirax Sarco · NSN 4730-01-189-8847 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-189-8847 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-189-8847. Primary manufacturer part number: 51991.
Features
  • Strainer,sediment — FSC 4730
  • Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
  • Media for Which Designed: FUEL/OIL, HYDROCARBON
  • Material Document and Classification: ASTM-B-62 ASSN STD 1ST MATERIAL RESPONSE BODY
  • Filtering Media Design: MESH ALL FILTERING MEDIA RESPONSES
  • Style Designator: Y STRAINER W/BOLTED COVER
  • Material: STEEL CORROSION RESISTING SCREENING
  • Mounting Type: INLET CONNECTION AND OUTLET CONNECTION UPPER SIDE
Applications
  • Applications requiring Steel Corrosion Resisting Screening construction
General Description

The Strainer,sediment, cataloged under National Stock Number 4730-01-189-8847, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-189-8847
Primary Part Number51991
Item NameStrainer,sediment
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSpirax Sarco Inc Dba Spirax Sarco
StatusACTIVE
Operating Pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Media for Which DesignedFUEL/OIL, HYDROCARBON
Material Document and ClassificationASTM-B-62 ASSN STD 1ST MATERIAL RESPONSE BODY
Filtering Media DesignMESH ALL FILTERING MEDIA RESPONSES
Style DesignatorY STRAINER W/BOLTED COVER
MaterialSTEEL CORROSION RESISTING SCREENING
Mounting TypeINLET CONNECTION AND OUTLET CONNECTION UPPER SIDE
Mesh Size20.0
MaterialCOPPER ALLOY BODY
Temp Rating460.0 FAHRENHEIT NOMINAL DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5950-00-836-972451991 INTERCHANGEABLE
Transformer,radio Frequency
Magnetika Inc Div Magnetika/phillipsburg Location
6220-00-991-109651991 INTERCHANGEABLE
Cam,landing Light
Systems Architects Inc Washington Operation
2530-01-116-961651991-53.5 INTERCHANGEABLE
Tie Rod,steering
Aerol Llc
2530-01-220-839551991-23.5 INTERCHANGEABLE
Tie Rod,steering
Aerol Llc
5998-01-291-6795 INTERCHANGEABLE
Circuit Card Assembly
6140-01-316-8625175-387140 INTERCHANGEABLE
Battery,storage
Siemens Building Technologies Dba Siemens Fire Safety Division Div Siemens Building Technologies Inc.
2510-01-367-714551991 INTERCHANGEABLE
Frame Section,structural,vehicul
DP Manufacturing Inc.
4320-01-516-531451991 INTERCHANGEABLE
Motor-Pump,hydraulic
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
4730-01-642-6814BT-34 INTERCHANGEABLE
Tee,pipe
Standard Plumbing Supply Company, Inc
Cross-Reference Index
Part NumberManufacturer
BT-3/4 Spirax Sarco Inc Dba Spirax Sarco (USA)
51991 PRIMARY Spirax Sarco Inc Dba Spirax Sarco (USA)
Related Parts
5950-00-836-9724INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
51991
6220-00-991-1096INTERCHANGEABLE
CAM,LANDING LIGHT
51991
2530-01-116-9616INTERCHANGEABLE
TIE ROD,STEERING
51991-53.5
2530-01-220-8395INTERCHANGEABLE
TIE ROD,STEERING
51991-23.5
5998-01-291-6795INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6140-01-316-8625INTERCHANGEABLE
BATTERY,STORAGE
175-387140
2510-01-367-7145INTERCHANGEABLE
FRAME SECTION,STRUCTURAL,VEHICUL
51991
4320-01-516-5314INTERCHANGEABLE
MOTOR-PUMP,HYDRAULIC
51991
4730-01-642-6814INTERCHANGEABLE
TEE,PIPE
BT-34

Frequently Asked Questions

What is NSN 4730-01-189-8847?

NSN 4730-01-189-8847 is a Strainer,sediment, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-189-8847?

NSN 4730-01-189-8847 has 2 cross-referenced part numbers: BT-3/4 (Spirax Sarco Inc Dba Spirax Sarco), 51991 (Spirax Sarco Inc Dba Spirax Sarco).

What NSN replaces 4730-01-189-8847?

There are 9 known substitutes for 4730-01-189-8847: 5950-00-836-9724, 6220-00-991-1096, 2530-01-116-9616 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51991?

Key specifications for 51991: Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Media for Which Designed: FUEL/OIL, HYDROCARBON; Material Document and Classification: ASTM-B-62 ASSN STD 1ST MATERIAL RESPONSE BODY; Filtering Media Design: MESH ALL FILTERING MEDIA RESPONSES. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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