PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E8715R51MValve,safety Relief

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-464-6670 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-464-6670 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-464-6670. Primary manufacturer part number: E8715R51M.
Features
  • Valve,safety Relief — FSC 4820
  • Material: NICKEL ALLOY SEAT
  • Material Document and Classification: QQ-N-281 FED SPEC 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE
  • Flow Control Device: DISK
  • Connection Style: REDUCED GASKET SEAL FIRST END
  • Maximum Operating Temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Material: NICKEL ALLOY STEM
  • Surface Treatment Document and Classification: MIL-STD-10 MIL STD SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Seat construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-464-6670, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-464-6670
Primary Part NumberE8715R51M
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
MaterialNICKEL ALLOY SEAT
Material Document and ClassificationQQ-N-281 FED SPEC 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE
Flow Control DeviceDISK
Connection StyleREDUCED GASKET SEAL FIRST END
Maximum Operating Temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
MaterialNICKEL ALLOY STEM
Surface Treatment Document and ClassificationMIL-STD-10 MIL STD SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
Material Document and ClassificationQQ-N-281 FED SPEC 4TH MATERIAL RESPONSE STEM
Special Test FeaturesHYDROSTATIC AND AIR PRESSURE TESTS IAW SPEC MIL-V-22549
Nominal Outside Diameter1.373 INCHES ALL ENDS IN
Operating Pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Style DesignatorANGLE
Connection TypeUNTHREADED INTERNAL PIPE SECOND END
MaterialCOPPER ALLOY 922 BODY
Connection StyleREDUCED GASKET SEAL SECOND END
Connection TypeUNTHREADED INTERNAL PIPE FIRST END
Valve Operation MethodAUTOMATIC
Material Document and ClassificationAASTM-B-61 ASSN STD 1ST MATERIAL RESPONSE BODY
Nominal Length11.250 INCHES ALL ENDS IN
Material Document and ClassificationQQ-N-281 FED SPEC 3RD MATERIAL RESPONSE SEAT
MaterialNICKEL ALLOY FLOW CONTROL DEVICE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2010-00-213-05593375237 INTERCHANGEABLE
Shaft,main
Hatch & Kirk, Inc.
3040-00-499-24768715 INTERCHANGEABLE
Plate,retaining,shaft
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5315-00-525-22358715 INTERCHANGEABLE
Pin,straight,headless
Triumph Engine Control Systems Llc
5360-00-527-2205 INTERCHANGEABLE
Spring,helical,compression
2520-00-562-07061K2811 INTERCHANGEABLE
Collar,clutch Shift
Caterpillar Inc Div Caterpillar Defense
5330-00-654-4554 INTERCHANGEABLE
Packing,preformed
5930-00-679-42471998196 INTERCHANGEABLE
Switch,pressure
Borgwarner Pds (anderson), L.l.c.
6240-00-854-19298715 INTERCHANGEABLE
Lamp,incandescent
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
5930-01-163-8950P-8715 INTERCHANGEABLE
Switch,push
Altec Air, Llc Dba Altec Llc
4240-01-247-23488511 INTERCHANGEABLE
Mask,air Filtering
3m Company
Cross-Reference Index
Part NumberManufacturer
8715 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
E8715R51M PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
E8715R51M Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
BEMBB08SDD Danco Valve Company (USA)
BEMBB08SDD Dante Valve Company (USA)
8715 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8712 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
2010-00-213-0559INTERCHANGEABLE
SHAFT,MAIN
3375237
3040-00-499-2476INTERCHANGEABLE
PLATE,RETAINING,SHAFT
8715
5315-00-525-2235INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
8715
5360-00-527-2205INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2520-00-562-0706INTERCHANGEABLE
COLLAR,CLUTCH SHIFT
1K2811
5330-00-654-4554INTERCHANGEABLE
PACKING,PREFORMED
5930-00-679-4247INTERCHANGEABLE
SWITCH,PRESSURE
1998196
6240-00-854-1929INTERCHANGEABLE
LAMP,INCANDESCENT
8715
5930-01-163-8950INTERCHANGEABLE
SWITCH,PUSH
P-8715
4240-01-247-2348INTERCHANGEABLE
MASK,AIR FILTERING
8511
5962-01-396-7910INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5998-01-451-3539INTERCHANGEABLE
PRINTED CIRCUIT BOARD
8715

Frequently Asked Questions

What is NSN 4820-01-464-6670?

NSN 4820-01-464-6670 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-464-6670?

NSN 4820-01-464-6670 has 7 cross-referenced part numbers: 8715 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), E8715R51M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), E8715R51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), BEMBB08SDD (Danco Valve Company), BEMBB08SDD (Dante Valve Company) and 2 more.

What NSN replaces 4820-01-464-6670?

There are 12 known substitutes for 4820-01-464-6670: 2010-00-213-0559, 3040-00-499-2476, 5315-00-525-2235 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E8715R51M?

Key specifications for E8715R51M: Material: NICKEL ALLOY SEAT; Material Document and Classification: QQ-N-281 FED SPEC 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE; Flow Control Device: DISK; Connection Style: REDUCED GASKET SEAL FIRST END. 23 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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