Interchange:
Straight-Thru Industrial Interchange. Standard industrial interchange design, most widely used in industry. Within each series, only sockets and plugs of the same size will couple together.
Features:
Type: FST Straight-Thru, No valve in either socket or plug. Operation: Manual – Socket sleeve must be manually retracted to connect and disconnect. Options: Ball Lock (BL) – Locks socket against accidental disconnect. To connect, align ball with slot. After connection, rotate sleeve to lock. To disconnect, realign ball with slot and retract sleeve. Seal Compound: Standard seals are Buna-N Performance Data Flow: Couplers have same inside diameter as nominal pipe. Rated Pressure: Rated pressures as defined by ANSI/B93.2-1986, based on 4:1 Safety Factor and non-shock service. Vacuum Service: 27″ Hg maximum NOTE: Only Sockets & Plugs with same prefix digits connect together. Example: 25FS & 25MPB

Male Plug Part Number	Brand	Female Coupler Part Number	MPT Size	Description
12MP	Foster	12MS	1/8″	Steel
12MPB	Foster	1/8″	Brass
12MPS	Foster	1/8″	303 Stainless Steel
ST1M1-B	Breco	1STM1-B	1/8″	Brass
ST1M1-SS	Breco	1/8″	303 Stainless Steel
ST1M1-S	Breco	1/8″	Steel
25MP	Foster	25MS	1/4″	Steel
25MPB	Foster	1/4″	Brass
25MPS	Foster	1/4″	303 Stainless Steel
ST2M2-B	Breco	2STM2-B 2STM2-SS	1/4″	Brass
ST2M2-SS	Breco	1/4″	303 Stainless Steel
ST2M2-S	Breco	1/4″	Steel
38MP	Foster	38MS	3/8″	Steel
38MPB	Foster	3/8″	Brass
38MPS	Foster	3/8″	303 Stainless Steel
ST3M3-B	Breco	3STM3-B 3STM3-SS	3/8″	Brass
ST3M3-SS	Breco	3/8″	303 Stainless Steel
ST3M3-S	Breco	3/8″	Steel
50MP	Foster	50MS	1/2″	Steel
50MPB	Foster	1/2″	Brass
50MPS	Foster	1/2″	303 Stainless Steel
ST4M4-B	Breco	4STM4-B 4STM4-SS	1/2″	Brass
ST4M4-SS	Breco	1/2″	303 Stainless Steel
ST4M4-S	Breco	1/2″	Steel
75MP	Foster	75MS	3/4″	Steel
75MPB	Foster	3/4″	Brass
75MPS	Foster	3/4″	303 Stainless Steel
ST6M6-B	Breco	6STM6-B 6STM6-SS	3/4″	Brass
ST6M6-SS	Breco	3/4″	303 Stainless Steel
ST6M6-S	Breco	3/4″	Steel
100MP	Foster	100MS	1″	Steel
100MPB	Foster	1″	Brass
100MPS	Foster	1″	303 Stainless Steel
ST8M8-B	Breco	8STM8-B 8STM8-SS	1″	Brass
ST8M8-SS	Breco	1″	303 Stainless Steel
ST8M8-S	Breco	1″	Steel
125MP	Foster	–	1-1/4″	Steel
125MPB	Foster	–	1-1/4″	Brass
150MP	Foster	–	1-1/2″	Steel
150MPB	Foster	–	1-1/2″	Brass

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38MPS by ZSi-Foster | Quick Disconnect | FST Series | Plug | Straight Thru | 3/8 ” MPT | 303 Stainless Steel