PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

N3781894Diaphragm,actuator Valve,special

Name: N3781894
SKU: 4820-00-678-8527

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-00-678-8527 · FSC 4820 · No Item Name Available

Verified by PartsTable

NSN 4820-00-678-8527 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-678-8527. Primary manufacturer part number: N3781894.

4820-00-678-8527 — No Item Name Available illustration

Features

Diaphragm,actuator Valve,special — FSC 4820
Material: RUBBER SYNTHETIC
5 verified cross-references
Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc

Applications

Flow control in piping systems
Pressure regulation
Steam and fluid isolation
Applications requiring Rubber Synthetic construction

General Description

The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-00-678-8527, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-00-678-8527
Primary Part Number	N3781894
Item Name	Diaphragm,actuator Valve,special
FSC / FSG	4820 / 48 — No Item Name Available
Manufacturer	Leslie Controls, Inc. Dba Leslie Controls Inc
Status	ACTIVE
Material	RUBBER SYNTHETIC

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 4

5305-00-149-9702537818 INTERCHANGEABLE

Screw,machine

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.

5950-00-840-653710043639 INTERCHANGEABLE

Transformer,power

Us Army Aviation and Missile Command

5307-00-881-244237818 INTERCHANGEABLE

Stud,plain

L3harris Technologies, Inc. Div Space and Airborne Systems

2910-01-399-184812458122 INTERCHANGEABLE

Injector Assembly,fuel

General Motors Llc Dba General Motors Llc

Cross-Reference Index

Part Number	Manufacturer
37818	Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N3781894 PRIMARY	Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
4820PL0952413	Jednolity Indeks Materialowy - Uniform Material Index (POL)
3781894	Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
12728NPC8	Leslie Controls, Inc. Dba Leslie Controls Inc (USA)

Related Parts

5305-00-149-9702INTERCHANGEABLE

SCREW,MACHINE

537818

5950-00-840-6537INTERCHANGEABLE

TRANSFORMER,POWER

10043639

5307-00-881-2442INTERCHANGEABLE

STUD,PLAIN

37818

2910-01-399-1848INTERCHANGEABLE

INJECTOR ASSEMBLY,FUEL

12458122

Frequently Asked Questions

What is NSN 4820-00-678-8527?

NSN 4820-00-678-8527 is a Diaphragm,actuator Valve,special, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-678-8527?

NSN 4820-00-678-8527 has 5 cross-referenced part numbers: 37818 (Leslie Controls, Inc. Dba Leslie Controls Inc), N3781894 (Leslie Controls, Inc. Dba Leslie Controls Inc), 4820PL0952413 (Jednolity Indeks Materialowy - Uniform Material Index), 3781894 (Leslie Controls, Inc. Dba Leslie Controls Inc), 12728NPC8 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-00-678-8527?

There are 4 known substitutes for 4820-00-678-8527: 5305-00-149-9702, 5950-00-840-6537, 5307-00-881-2442 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N3781894?

Key specifications for N3781894: Material: RUBBER SYNTHETIC. 1 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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