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	FPT Size	Description
12FPB	Foster	12FS 12FSS	1/8″	Brass
12FPS	Foster	1/8″	303 Stainless Steel
ST1F1-B	Breco	1STF1-B 1STF1-SS	1/8″	Brass
ST1F1-SS	Breco	1/8″	303 Stainless Steel
ST1F1-S	Breco	1/8″	Steel
25FP	Foster	25FS 25FSS	1/4″	Steel
25FPB	Foster	1/4″	Brass
25FPS	Foster	1/4″	303 Stainless Steel
2STF2-B	Breco	2STF2-B 2STF2-SS	1/4″	Brass
ST2F2-SS	Breco	1/4″	303 Stainless Steel
ST2F2-S	Breco	1/4″	Steel
ST2F2-S-E (Extended)	Breco	1/4″	Steel
38FP	Foster	38FS 38FSS	3/8″	Steel
38FPB	Foster	3/8″	Brass
38FPS	Foster	3/8″	303 Stainless Steel
ST3F3-B	Breco	3STF3-B 3STF3-SS	3/8″	Brass
ST3F3-SS	Breco	3/8″	303 Stainless Steel
ST3F3-S	Breco	3/8″	Steel
50FP	Foster	50FS 50FSS	1/2″	Steel
50FPB	Foster	1/2″	Brass
50FPS	Foster	1/2″	303 Stainless Steel
ST4F4-B	Breco	4STF4-B 4STF4-SS	1/2″	Brass
4STF4-SS	Breco	1/2″	303 Stainless Steel
75FP	Foster	75FS 75FSS	3/4″	Steel
75FPB	Foster	3/4″	Brass
75FPS	Foster	3/4″	303 Stainless Steel
ST6F6-B	Breco	6STF6-B 6STF6-SS	3/4″	Brass
ST6F6-SS	Breco	3/4″	303 Stainless Steel
100FP	Foster	100FS 100FSS	1″	Steel
100FPB	Foster	1″	Brass
100FPS	Foster	1″	303 Stainless Steel
ST8F8-B	Breco	8STF8-B 8STF8-SS	1″	Brass
ST8F8-SS	Breco	1″	303 Stainless Steel
125FP	Foster	125FS	1-1/4″	Steel
125FPB	Foster	1-1/4″	Brass
150FP	Foster	150FS	1-1/2″	Steel
150FPB	Foster	1-1/2″	Brass

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50FPB by ZSi-Foster | Quick Disconnect | FST Series | Plug | Straight Thru | 1/2 ” FPT | Brass